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  • Referencing movie clips from within an actionscript class

    - by Ant
    Hi all, I have been given the task of adding a scoring system to various flash games. This simply involves taking input, adding functionality such as pausing and replaying and then outputting the score, time left etc. at the end. I've so far successfully edited two games. Both these games used the "actions" code on frames. The latest game I'm trying to do uses an actionscript class which makes it both easier and harder. I'm not very adept at flash at all, but I've worked it out so far. I've added various movie clips that are to be used for displaying the pause screen background, buttons for replaying etc. I've been showing and hiding these using: back._visible = true; //movie clip, instance of back (back.png) I doubt it's best practice, but it's quick and has been working. However, now with the change of coding style to classes, this doesn't seem to work. I kinda understand why, but I'm now unsure how to hide/show these elements. Any help would be greatly appreciated :) I've attached the modified AS. class RivalOrbs extends MovieClip { var infinite_levels, orbs_start, orbs_inc, orbs_per_level, show_timer, _parent, one_time_per_level, speed_start, speed_inc_percent, max_speed, percent_starting_on_wrong_side, colorize, colors, secs_per_level; function RivalOrbs() { super(); mc = this; this.init(); } // End of the function function get_num_orbs() { if (infinite_levels) { return (orbs_start + (level - 1) * orbs_inc); } else if (level > orbs_per_level.length) { return (0); } else { return (orbs_per_level[level - 1]); } // end else if } // End of the function function get_timer_str(secs) { var _loc2 = Math.floor(secs / 60); var _loc1 = secs % 60; return ((_loc2 > 0 ? (_loc2) : ("0")) + ":" + (_loc1 >= 10 ? (_loc1) : ("0" + _loc1))); } // End of the function function frame() { //PLACE PAUSE CODE HERE if (!Key.isDown(80) and !Key.isDown(Key.ESCAPE)) { _root.offKey = true; } else if (Key.isDown(80) or Key.isDown(Key.ESCAPE)) { if (_root.offKey and _root.game_mode == "play") { _root.game_mode = "pause"; /* back._visible = true; btn_resume._visible = true; btn_exit._visible = true; txt_pause._visible = true; */ } else if (_root.offKey and _root.game_mode == "pause") { _root.game_mode = "play"; } _root.offKey = false; } if (_root.game_mode == "pause" or paused) { return; } else { /* back._visible = false; btn_resume._visible = false; btn_exit._visible = false; txt_pause._visible = false; */ } if (show_timer && total_secs != -1 || show_timer && _parent.timesup) { _loc7 = total_secs - Math.ceil((getTimer() - timer) / 1000); var diff = oldSeconds - (_loc7 + additional); if (diff > 1) additional = additional + diff; _loc7 = _loc7 + additional; oldSeconds = _loc7; trace(oldSeconds); mc.timer_field.text = this.get_timer_str(Math.max(0, _loc7)); if (_loc7 <= -1 || _parent.timesup) { if (one_time_per_level) { _root.gotoAndPlay("Lose"); } else { this.show_dialog(false); return; } // end if } // end if } // end else if var _loc9 = _root._xmouse; var _loc8 = _root._ymouse; var _loc6 = {x: _loc9, y: _loc8}; mc.globalToLocal(_loc6); _loc6.y = Math.max(-mc.bg._height / 2 + gap / 2, _loc6.y); _loc6.y = Math.min(mc.bg._height / 2 - gap / 2, _loc6.y); mc.wall1._y = _loc6.y - gap / 2 - mc.wall1._height / 2; mc.wall2._y = _loc6.y + gap / 2 + mc.wall1._height / 2; var _loc5 = true; for (var _loc4 = 0; _loc4 < this.get_num_orbs(); ++_loc4) { var _loc3 = mc.stage["orb" + _loc4]; _loc3.x_last = _loc3._x; _loc3.y_last = _loc3._y; _loc3._x = _loc3._x + _loc3.x_speed; _loc3._y = _loc3._y + _loc3.y_speed; if (_loc3._x < l_thresh) { _loc3.x_speed = _loc3.x_speed * -1; _loc3._x = l_thresh + (l_thresh - _loc3._x); _loc3.gotoAndPlay("hit"); } // end if if (_loc3._x > r_thresh) { _loc3.x_speed = _loc3.x_speed * -1; _loc3._x = r_thresh - (_loc3._x - r_thresh); _loc3.gotoAndPlay("hit"); } // end if if (_loc3._y < t_thresh) { _loc3.y_speed = _loc3.y_speed * -1; _loc3._y = t_thresh + (t_thresh - _loc3._y); _loc3.gotoAndPlay("hit"); } // end if if (_loc3._y > b_thresh) { _loc3.y_speed = _loc3.y_speed * -1; _loc3._y = b_thresh - (_loc3._y - b_thresh); _loc3.gotoAndPlay("hit"); } // end if if (_loc3.x_speed > 0) { if (_loc3._x >= m1_thresh && _loc3.x_last < m1_thresh || _loc3._x >= m1_thresh && _loc3._x <= m2_thresh) { if (_loc3._y <= mc.wall1._y + mc.wall1._height / 2 || _loc3._y >= mc.wall2._y - mc.wall2._height / 2) { _loc3.x_speed = _loc3.x_speed * -1; _loc3._x = m1_thresh - (_loc3._x - m1_thresh); _loc3.gotoAndPlay("hit"); } // end if } // end if } else if (_loc3._x <= m2_thresh && _loc3.x_last > m2_thresh || _loc3._x >= m1_thresh && _loc3._x <= m2_thresh) { if (_loc3._y <= mc.wall1._y + mc.wall1._height / 2 || _loc3._y >= mc.wall2._y - mc.wall2._height / 2) { _loc3.x_speed = _loc3.x_speed * -1; _loc3._x = m2_thresh + (m2_thresh - _loc3._x); _loc3.gotoAndPlay("hit"); } // end if } // end else if if (_loc3.side == 1 && _loc3._x > 0) { _loc5 = false; } // end if if (_loc3.side == 2 && _loc3._x < 0) { _loc5 = false; } // end if } // end of for if (_loc5) { this.end_level(); } // end if } // End of the function function colorize_hex(mc, hex) { var _loc4 = hex >> 16; var _loc5 = (hex ^ hex >> 16 << 16) >> 8; var _loc3 = hex >> 8 << 8 ^ hex; var _loc2 = new flash.geom.ColorTransform(0, 0, 0, 1, _loc4, _loc5, _loc3, 0); mc.transform.colorTransform = _loc2; } // End of the function function tint_hex(mc, hex, amount) { var _loc4 = hex >> 16; var _loc5 = hex >> 8 & 255; var _loc3 = hex & 255; this.tint(mc, _loc4, _loc5, _loc3, amount); } // End of the function function tint(mc, r, g, b, amount) { var _loc4 = 100 - amount; var _loc1 = new Object(); _loc1.ra = _loc1.ga = _loc1.ba = _loc4; var _loc2 = amount / 100; _loc1.rb = r * _loc2; _loc1.gb = g * _loc2; _loc1.bb = b * _loc2; var _loc3 = new Color(mc); _loc3.setTransform(_loc1); } // End of the function function get_num_levels() { if (infinite_levels) { return (Number.MAX_VALUE); } else { return (orbs_per_level.length); } // end else if } // End of the function function end_level() { _global.inputTimeAvailable = _global.inputTimeAvailable - (60 - oldSeconds); ++level; _parent.levelOver = true; if (level <= this.get_num_levels()) { this.show_dialog(true); } else { _root.gotoAndPlay("Win"); } // end else if } // End of the function function get_speed() { var _loc3 = speed_start; for (var _loc2 = 0; _loc2 < level - 1; ++_loc2) { _loc3 = _loc3 + _loc3 * (speed_inc_percent / 100); } // end of for return (Math.min(_loc3, Math.max(max_speed, speed_start))); } // End of the function function init_orbs() { var _loc6 = this.get_speed(); var _loc7 = Math.max(1, Math.ceil(this.get_num_orbs() * (percent_starting_on_wrong_side / 100))); for (var _loc3 = 0; _loc3 < this.get_num_orbs(); ++_loc3) { var _loc2 = null; if (_loc3 % 2 == 0) { _loc2 = mc.stage.attachMovie("Orb1", "orb" + _loc3, _loc3); _loc2.side = 1; if (colorize && color1 != -1) { this.colorize_hex(_loc2.orb.bg, color1); } // end if _loc2._x = Math.random() * (mc.bg._width * 4.000000E-001) - mc.bg._width * 2.000000E-001 - mc.bg._width / 4; } else { _loc2 = mc.stage.attachMovie("Orb2", "orb" + _loc3, _loc3); _loc2.side = 2; if (colorize && color2 != -1) { this.colorize_hex(_loc2.orb.bg, color2); } // end if _loc2._x = Math.random() * (mc.bg._width * 4.000000E-001) - mc.bg._width * 2.000000E-001 + mc.bg._width / 4; } // end else if _loc2._width = _loc2._height = orb_w; _loc2._y = Math.random() * (mc.bg._height * 8.000000E-001) - mc.bg._height * 4.000000E-001; if (_loc3 < _loc7) { _loc2._x = _loc2._x * -1; } // end if var _loc5 = Math.random() * 60; var _loc4 = _loc5 / 180 * 3.141593E+000; _loc2.x_speed = Math.cos(_loc4) * _loc6; _loc2.y_speed = Math.sin(_loc4) * _loc6; if (Math.random() >= 5.000000E-001) { _loc2.x_speed = _loc2.x_speed * -1; } // end if if (Math.random() >= 5.000000E-001) { _loc2.y_speed = _loc2.y_speed * -1; } // end if } // end of for } // End of the function function init_colors() { if (colorize && colors.length >= 2) { color1 = colors[Math.floor(Math.random() * colors.length)]; for (color2 = colors[Math.floor(Math.random() * colors.length)]; color2 == color1; color2 = colors[Math.floor(Math.random() * colors.length)]) { } // end of for this.tint_hex(mc.side1, color1, 40); this.tint_hex(mc.side2, color2, 40); } else { color1 = -1; color2 = -1; } // end else if } // End of the function function get_total_secs() { if (show_timer) { if (secs_per_level.length > 0) { if (level > secs_per_level.length) { return (secs_per_level[secs_per_level.length - 1]); } else { return (secs_per_level[level - 1]); } // end if } // end if } // end else if return (-1); } // End of the function function start_level() { trace ("start_level"); _parent.timesup = false; _parent.levelOver = false; _parent.times_up_comp.start_timer(); this.init_orbs(); mc.level_field.text = "LEVEL " + level; total_secs = _global.inputTimeAvailable; if (total_secs > 60) total_secs = 60; timer = getTimer(); paused = false; mc.dialog.gotoAndPlay("off"); } // End of the function function clear_orbs() { for (var _loc2 = 0; mc.stage["orb" + _loc2]; ++_loc2) { mc.stage["orb" + _loc2].removeMovieClip(); } // end of for } // End of the function function show_dialog(new_level) { mc.back._visible = false; trace("yes"); paused = true; if (new_level) { this.init_colors(); } // end if this.clear_orbs(); mc.dialog.gotoAndPlay("level"); if (!new_level || _parent.timesup) { mc.dialog.level_top.text = "Time\'s Up!"; /* dyn_line1.text = "Goodbye " + _global.inputName + "!"; dyn_line2.text = "You scored " + score; //buttons if (_global.inputTimeAvailable > 60) btn_replay._visible = true; btn_resume._visible = false; btn_exit._visible = false; txt_pause._visible = false; sendInfo = new LoadVars(); sendLoader = new LoadVars(); sendInfo.game_name = 'rival_orbs'; sendInfo.timeavailable = _global.inputTimeAvailable; if (sendInfo.timeavailable < 0) sendInfo.timeavailable = 0; sendInfo.id = _global.inputId; sendInfo.score = level*_global.inputFactor; sendInfo.directive = 'record'; //sendInfo.sendAndLoad('ncc1701e.aspx', sendLoader, "GET"); sendInfo.sendAndLoad('http://keyload.co.uk/output.php', sendLoader, "POST"); */ } else if (level > 1) { mc.dialog.level_top.text = "Next Level:"; } else { mc.dialog.level_top.text = ""; } // end else if mc.dialog.level_num.text = "LEVEL " + level; mc.dialog.level_mid.text = "Number of Orbs: " + this.get_num_orbs(); _root.max_level = level; var _this = this; mc.dialog.btn.onRelease = function () { _this.start_level(); }; } // End of the function function init() { var getInfo = new LoadVars(); var getLoader = new LoadVars(); getInfo.directive = "read"; getInfo.sendAndLoad('http://keyload.co.uk/input.php', getLoader, "GET"); getLoader.onLoad = function (success) { if (success) { _global.inputId = this.id; _global.inputTimeAvailable = this.timeavailable; _global.inputFactor = this.factor; _global.inputName = this.name; } else { trace("Failed"); } } _root.game_mode = "play"; /* back._visible = false; btn_exit._visible = false; btn_replay._visible = false; btn_resume._visible = false; txt_pause._visible = false; */ l_thresh = -mc.bg._width / 2 + orb_w / 2; t_thresh = -mc.bg._height / 2 + orb_w / 2; r_thresh = mc.bg._width / 2 - orb_w / 2; b_thresh = mc.bg._height / 2 - orb_w / 2; m1_thresh = -wall_w / 2 - orb_w / 2; m2_thresh = wall_w / 2 + orb_w / 2; this.show_dialog(true); mc.onEnterFrame = frame; } // End of the function var mc = null; var orb_w = 15; var wall_w = 2; var l_thresh = 0; var r_thresh = 0; var t_thresh = 0; var b_thresh = 0; var m1_thresh = 0; var m2_thresh = 0; var color1 = -1; var color2 = -1; var level = 1; var total_secs = 30; var gap = 60; var timer = 0; var additional = 0; var oldSeconds = 0; var paused = true; var _loc7 = 0; } // End of Class

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  • Steganography Experiment - Trouble hiding message bits in DCT coefficients

    - by JohnHankinson
    I have an application requiring me to be able to embed loss-less data into an image. As such I've been experimenting with steganography, specifically via modification of DCT coefficients as the method I select, apart from being loss-less must also be relatively resilient against format conversion, scaling/DSP etc. From the research I've done thus far this method seems to be the best candidate. I've seen a number of papers on the subject which all seem to neglect specific details (some neglect to mention modification of 0 coefficients, or modification of AC coefficient etc). After combining the findings and making a few modifications of my own which include: 1) Using a more quantized version of the DCT matrix to ensure we only modify coefficients that would still be present should the image be JPEG'ed further or processed (I'm using this in place of simply following a zig-zag pattern). 2) I'm modifying bit 4 instead of the LSB and then based on what the original bit value was adjusting the lower bits to minimize the difference. 3) I'm only modifying the blue channel as it should be the least visible. This process must modify the actual image and not the DCT values stored in file (like jsteg) as there is no guarantee the file will be a JPEG, it may also be opened and re-saved at a later stage in a different format. For added robustness I've included the message multiple times and use the bits that occur most often, I had considered using a QR code as the message data or simply applying the reed-solomon error correction, but for this simple application and given that the "message" in question is usually going to be between 10-32 bytes I have plenty of room to repeat it which should provide sufficient redundancy to recover the true bits. No matter what I do I don't seem to be able to recover the bits at the decode stage. I've tried including / excluding various checks (even if it degrades image quality for the time being). I've tried using fixed point vs. double arithmetic, moving the bit to encode, I suspect that the message bits are being lost during the IDCT back to image. Any thoughts or suggestions on how to get this working would be hugely appreciated. (PS I am aware that the actual DCT/IDCT could be optimized from it's naive On4 operation using row column algorithm, or an FDCT like AAN, but for now it just needs to work :) ) Reference Papers: http://www.lokminglui.com/dct.pdf http://arxiv.org/ftp/arxiv/papers/1006/1006.1186.pdf Code for the Encode/Decode process in C# below: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Drawing.Imaging; using System.Drawing; namespace ImageKey { public class Encoder { public const int HIDE_BIT_POS = 3; // use bit position 4 (1 << 3). public const int HIDE_COUNT = 16; // Number of times to repeat the message to avoid error. // JPEG Standard Quantization Matrix. // (to get higher quality multiply by (100-quality)/50 .. // for lower than 50 multiply by 50/quality. Then round to integers and clip to ensure only positive integers. public static double[] Q = {16,11,10,16,24,40,51,61, 12,12,14,19,26,58,60,55, 14,13,16,24,40,57,69,56, 14,17,22,29,51,87,80,62, 18,22,37,56,68,109,103,77, 24,35,55,64,81,104,113,92, 49,64,78,87,103,121,120,101, 72,92,95,98,112,100,103,99}; // Maximum qauality quantization matrix (if all 1's doesn't modify coefficients at all). public static double[] Q2 = {1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1}; public static Bitmap Encode(Bitmap b, string key) { Bitmap response = new Bitmap(b.Width, b.Height, PixelFormat.Format32bppArgb); uint imgWidth = ((uint)b.Width) & ~((uint)7); // Maximum usable X resolution (divisible by 8). uint imgHeight = ((uint)b.Height) & ~((uint)7); // Maximum usable Y resolution (divisible by 8). // Start be transferring the unmodified image portions. // As we'll be using slightly less width/height for the encoding process we'll need the edges to be populated. for (int y = 0; y < b.Height; y++) for (int x = 0; x < b.Width; x++) { if( (x >= imgWidth && x < b.Width) || (y>=imgHeight && y < b.Height)) response.SetPixel(x, y, b.GetPixel(x, y)); } // Setup the counters and byte data for the message to encode. StringBuilder sb = new StringBuilder(); for(int i=0;i<HIDE_COUNT;i++) sb.Append(key); byte[] codeBytes = System.Text.Encoding.ASCII.GetBytes(sb.ToString()); int bitofs = 0; // Current bit position we've encoded too. int totalBits = (codeBytes.Length * 8); // Total number of bits to encode. for (int y = 0; y < imgHeight; y += 8) { for (int x = 0; x < imgWidth; x += 8) { int[] redData = GetRedChannelData(b, x, y); int[] greenData = GetGreenChannelData(b, x, y); int[] blueData = GetBlueChannelData(b, x, y); int[] newRedData; int[] newGreenData; int[] newBlueData; if (bitofs < totalBits) { double[] redDCT = DCT(ref redData); double[] greenDCT = DCT(ref greenData); double[] blueDCT = DCT(ref blueData); int[] redDCTI = Quantize(ref redDCT, ref Q2); int[] greenDCTI = Quantize(ref greenDCT, ref Q2); int[] blueDCTI = Quantize(ref blueDCT, ref Q2); int[] blueDCTC = Quantize(ref blueDCT, ref Q); HideBits(ref blueDCTI, ref blueDCTC, ref bitofs, ref totalBits, ref codeBytes); double[] redDCT2 = DeQuantize(ref redDCTI, ref Q2); double[] greenDCT2 = DeQuantize(ref greenDCTI, ref Q2); double[] blueDCT2 = DeQuantize(ref blueDCTI, ref Q2); newRedData = IDCT(ref redDCT2); newGreenData = IDCT(ref greenDCT2); newBlueData = IDCT(ref blueDCT2); } else { newRedData = redData; newGreenData = greenData; newBlueData = blueData; } MapToRGBRange(ref newRedData); MapToRGBRange(ref newGreenData); MapToRGBRange(ref newBlueData); for(int dy=0;dy<8;dy++) { for(int dx=0;dx<8;dx++) { int col = (0xff<<24) + (newRedData[dx+(dy*8)]<<16) + (newGreenData[dx+(dy*8)]<<8) + (newBlueData[dx+(dy*8)]); response.SetPixel(x+dx,y+dy,Color.FromArgb(col)); } } } } if (bitofs < totalBits) throw new Exception("Failed to encode data - insufficient cover image coefficients"); return (response); } public static void HideBits(ref int[] DCTMatrix, ref int[] CMatrix, ref int bitofs, ref int totalBits, ref byte[] codeBytes) { int tempValue = 0; for (int u = 0; u < 8; u++) { for (int v = 0; v < 8; v++) { if ( (u != 0 || v != 0) && CMatrix[v+(u*8)] != 0 && DCTMatrix[v+(u*8)] != 0) { if (bitofs < totalBits) { tempValue = DCTMatrix[v + (u * 8)]; int bytePos = (bitofs) >> 3; int bitPos = (bitofs) % 8; byte mask = (byte)(1 << bitPos); byte value = (byte)((codeBytes[bytePos] & mask) >> bitPos); // 0 or 1. if (value == 0) { int a = DCTMatrix[v + (u * 8)] & (1 << HIDE_BIT_POS); if (a != 0) DCTMatrix[v + (u * 8)] |= (1 << HIDE_BIT_POS) - 1; DCTMatrix[v + (u * 8)] &= ~(1 << HIDE_BIT_POS); } else if (value == 1) { int a = DCTMatrix[v + (u * 8)] & (1 << HIDE_BIT_POS); if (a == 0) DCTMatrix[v + (u * 8)] &= ~((1 << HIDE_BIT_POS) - 1); DCTMatrix[v + (u * 8)] |= (1 << HIDE_BIT_POS); } if (DCTMatrix[v + (u * 8)] != 0) bitofs++; else DCTMatrix[v + (u * 8)] = tempValue; } } } } } public static void MapToRGBRange(ref int[] data) { for(int i=0;i<data.Length;i++) { data[i] += 128; if(data[i] < 0) data[i] = 0; else if(data[i] > 255) data[i] = 255; } } public static int[] GetRedChannelData(Bitmap b, int sx, int sy) { int[] data = new int[8 * 8]; for (int y = sy; y < (sy + 8); y++) { for (int x = sx; x < (sx + 8); x++) { uint col = (uint)b.GetPixel(x,y).ToArgb(); data[(x - sx) + ((y - sy) * 8)] = (int)((col >> 16) & 0xff) - 128; } } return (data); } public static int[] GetGreenChannelData(Bitmap b, int sx, int sy) { int[] data = new int[8 * 8]; for (int y = sy; y < (sy + 8); y++) { for (int x = sx; x < (sx + 8); x++) { uint col = (uint)b.GetPixel(x, y).ToArgb(); data[(x - sx) + ((y - sy) * 8)] = (int)((col >> 8) & 0xff) - 128; } } return (data); } public static int[] GetBlueChannelData(Bitmap b, int sx, int sy) { int[] data = new int[8 * 8]; for (int y = sy; y < (sy + 8); y++) { for (int x = sx; x < (sx + 8); x++) { uint col = (uint)b.GetPixel(x, y).ToArgb(); data[(x - sx) + ((y - sy) * 8)] = (int)((col >> 0) & 0xff) - 128; } } return (data); } public static int[] Quantize(ref double[] DCTMatrix, ref double[] Q) { int[] DCTMatrixOut = new int[8*8]; for (int u = 0; u < 8; u++) { for (int v = 0; v < 8; v++) { DCTMatrixOut[v + (u * 8)] = (int)Math.Round(DCTMatrix[v + (u * 8)] / Q[v + (u * 8)]); } } return(DCTMatrixOut); } public static double[] DeQuantize(ref int[] DCTMatrix, ref double[] Q) { double[] DCTMatrixOut = new double[8*8]; for (int u = 0; u < 8; u++) { for (int v = 0; v < 8; v++) { DCTMatrixOut[v + (u * 8)] = (double)DCTMatrix[v + (u * 8)] * Q[v + (u * 8)]; } } return(DCTMatrixOut); } public static double[] DCT(ref int[] data) { double[] DCTMatrix = new double[8 * 8]; for (int v = 0; v < 8; v++) { for (int u = 0; u < 8; u++) { double cu = 1; if (u == 0) cu = (1.0 / Math.Sqrt(2.0)); double cv = 1; if (v == 0) cv = (1.0 / Math.Sqrt(2.0)); double sum = 0.0; for (int y = 0; y < 8; y++) { for (int x = 0; x < 8; x++) { double s = data[x + (y * 8)]; double dctVal = Math.Cos((2 * y + 1) * v * Math.PI / 16) * Math.Cos((2 * x + 1) * u * Math.PI / 16); sum += s * dctVal; } } DCTMatrix[u + (v * 8)] = (0.25 * cu * cv * sum); } } return (DCTMatrix); } public static int[] IDCT(ref double[] DCTMatrix) { int[] Matrix = new int[8 * 8]; for (int y = 0; y < 8; y++) { for (int x = 0; x < 8; x++) { double sum = 0; for (int v = 0; v < 8; v++) { for (int u = 0; u < 8; u++) { double cu = 1; if (u == 0) cu = (1.0 / Math.Sqrt(2.0)); double cv = 1; if (v == 0) cv = (1.0 / Math.Sqrt(2.0)); double idctVal = (cu * cv) / 4.0 * Math.Cos((2 * y + 1) * v * Math.PI / 16) * Math.Cos((2 * x + 1) * u * Math.PI / 16); sum += (DCTMatrix[u + (v * 8)] * idctVal); } } Matrix[x + (y * 8)] = (int)Math.Round(sum); } } return (Matrix); } } public class Decoder { public static string Decode(Bitmap b, int expectedLength) { expectedLength *= Encoder.HIDE_COUNT; uint imgWidth = ((uint)b.Width) & ~((uint)7); // Maximum usable X resolution (divisible by 8). uint imgHeight = ((uint)b.Height) & ~((uint)7); // Maximum usable Y resolution (divisible by 8). // Setup the counters and byte data for the message to decode. byte[] codeBytes = new byte[expectedLength]; byte[] outBytes = new byte[expectedLength / Encoder.HIDE_COUNT]; int bitofs = 0; // Current bit position we've decoded too. int totalBits = (codeBytes.Length * 8); // Total number of bits to decode. for (int y = 0; y < imgHeight; y += 8) { for (int x = 0; x < imgWidth; x += 8) { int[] blueData = ImageKey.Encoder.GetBlueChannelData(b, x, y); double[] blueDCT = ImageKey.Encoder.DCT(ref blueData); int[] blueDCTI = ImageKey.Encoder.Quantize(ref blueDCT, ref Encoder.Q2); int[] blueDCTC = ImageKey.Encoder.Quantize(ref blueDCT, ref Encoder.Q); if (bitofs < totalBits) GetBits(ref blueDCTI, ref blueDCTC, ref bitofs, ref totalBits, ref codeBytes); } } bitofs = 0; for (int i = 0; i < (expectedLength / Encoder.HIDE_COUNT) * 8; i++) { int bytePos = (bitofs) >> 3; int bitPos = (bitofs) % 8; byte mask = (byte)(1 << bitPos); List<int> values = new List<int>(); int zeroCount = 0; int oneCount = 0; for (int j = 0; j < Encoder.HIDE_COUNT; j++) { int val = (codeBytes[bytePos + ((expectedLength / Encoder.HIDE_COUNT) * j)] & mask) >> bitPos; values.Add(val); if (val == 0) zeroCount++; else oneCount++; } if (oneCount >= zeroCount) outBytes[bytePos] |= mask; bitofs++; values.Clear(); } return (System.Text.Encoding.ASCII.GetString(outBytes)); } public static void GetBits(ref int[] DCTMatrix, ref int[] CMatrix, ref int bitofs, ref int totalBits, ref byte[] codeBytes) { for (int u = 0; u < 8; u++) { for (int v = 0; v < 8; v++) { if ((u != 0 || v != 0) && CMatrix[v + (u * 8)] != 0 && DCTMatrix[v + (u * 8)] != 0) { if (bitofs < totalBits) { int bytePos = (bitofs) >> 3; int bitPos = (bitofs) % 8; byte mask = (byte)(1 << bitPos); int value = DCTMatrix[v + (u * 8)] & (1 << Encoder.HIDE_BIT_POS); if (value != 0) codeBytes[bytePos] |= mask; bitofs++; } } } } } } } UPDATE: By switching to using a QR Code as the source message and swapping a pair of coefficients in each block instead of bit manipulation I've been able to get the message to survive the transform. However to get the message to come through without corruption I have to adjust both coefficients as well as swap them. For example swapping (3,4) and (4,3) in the DCT matrix and then respectively adding 8 and subtracting 8 as an arbitrary constant seems to work. This survives a re-JPEG'ing of 96 but any form of scaling/cropping destroys the message again. I was hoping that by operating on mid to low frequency values that the message would be preserved even under some light image manipulation.

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  • How to write a XSLT for this XML?

    - by atrueguy
    <?xml version="1.0" encoding="utf-8"?> <!-- Generator: Adobe Illustrator 14.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 43363) --> <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="612px" height="792px" viewBox="0 0 612 792" enable-background="new 0 0 612 792" xml:space="preserve"> <g id="Original_Text"> <line x1="92.676" y1="500.913" x2="92.676" y2="500.262"/> <line x1="15.208" y1="500.913" x2="15.208" y2="500.262"/> <line x1="92.676" y1="500.262" x2="92.676" y2="500.913"/> <line x1="15.208" y1="510.329" x2="15.208" y2="509.678"/> <line x1="92.676" y1="500.913" x2="92.676" y2="500.262"/> <rect x="15.208" y="574.678" display="none" width="77.468" height="0.651"/> <text transform="matrix(1 0 0 1 258.6782 28.9111)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="8.4629">Bartlet</tspan><tspan x="24.459" y="0" font-family="'ArialMT'" font-size="8.4629">t</tspan><tspan x="26.895" y="0" font-family="'ArialMT'" font-size="8.4629"> </tspan><tspan x="29.035" y="0" font-family="'ArialMT'" font-size="8.4629">Managemen</tspan><tspan x="76.081" y="0" font-family="'ArialMT'" font-size="8.4629">t</tspan><tspan x="78.601" y="0" font-family="'ArialMT'" font-size="8.4629"> </tspan><tspan x="80.741" y="0" font-family="'ArialMT'" font-size="8.4629">Services</tspan></text> <text transform="matrix(1 0 0 1 522.9805 39.562)"><tspan x="0" y="0" fill="#0000FF" font-family="'ArialMT'" font-size="7.1609">Report</tspan><tspan x="21.493" y="0" fill="#0000FF" font-family="'ArialMT'" font-size="7.1609">s</tspan><tspan x="25.382" y="0" fill="#0000FF" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="27.343" y="0" fill="#0000FF" font-family="'ArialMT'" font-size="7.1609">Home</tspan></text> <line fill="none" stroke="#0000FF" stroke-width="0.651" stroke-miterlimit="10" x1="522.98" y1="40.213" x2="569.852" y2="40.213"/> <text transform="matrix(1 0 0 1 261.2822 39.3267)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Consolidate</tspan><tspan x="37.818" y="0" font-family="'ArialMT'" font-size="7.1609">d</tspan><tspan x="41.901" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="44.105" y="0" font-family="'ArialMT'" font-size="7.1609">Weekl</tspan><tspan x="64.001" y="0" font-family="'ArialMT'" font-size="7.1609">y</tspan><tspan x="67.975" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="70.18" y="0" font-family="'ArialMT'" font-size="7.1609">Sales</tspan><tspan x="88.092" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="90.297" y="0" font-family="'ArialMT'" font-size="7.1609">Report</tspan></text> <text transform="matrix(1 0 0 1 522.9775 49.3267)"><tspan x="0" y="0" fill="#0000FF" font-family="'ArialMT'" font-size="7.1609">Stor</tspan><tspan x="13.133" y="0" fill="#0000FF" font-family="'ArialMT'" font-size="7.1609">e</tspan><tspan x="17.566" y="0" fill="#0000FF" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="19.527" y="0" fill="#0000FF" font-family="'ArialMT'" font-size="7.1609">Finder</tspan></text> <line fill="none" stroke="#0000FF" stroke-width="0.651" stroke-miterlimit="10" x1="521.98" y1="49.978" x2="562.341" y2="49.978"/> <text transform="matrix(1 0 0 1 282.7881 49.9775)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">P</tspan><tspan x="4.776" y="0" font-family="'ArialMT'" font-size="7.1609">D</tspan><tspan x="10.27" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="12.475" y="0" font-family="'ArialMT'" font-size="7.1609"> / </tspan></text> <text transform="matrix(1 0 0 1 123.5044 60.8589)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Wee</tspan><tspan x="14.724" y="0" font-family="'ArialMT'" font-size="7.1609">k</tspan><tspan x="18.949" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="21.153" y="0" font-family="'ArialMT'" font-size="7.1609">1</tspan></text> <text transform="matrix(1 0 0 1 190.1138 60.8589)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Wee</tspan><tspan x="14.724" y="0" font-family="'ArialMT'" font-size="7.1609">k</tspan><tspan x="18.949" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="21.153" y="0" font-family="'ArialMT'" font-size="7.1609">2</tspan></text> <text transform="matrix(1 0 0 1 261.6782 60.8589)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Wee</tspan><tspan x="14.724" y="0" font-family="'ArialMT'" font-size="7.1609">k</tspan><tspan x="18.949" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="21.153" y="0" font-family="'ArialMT'" font-size="7.1609">3</tspan></text> <text transform="matrix(1 0 0 1 331.377 60.8589)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Wee</tspan><tspan x="14.724" y="0" font-family="'ArialMT'" font-size="7.1609">k</tspan><tspan x="18.949" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="21.153" y="0" font-family="'ArialMT'" font-size="7.1609">4</tspan></text> <text transform="matrix(1 0 0 1 400.3164 60.8589)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Wee</tspan><tspan x="14.724" y="0" font-family="'ArialMT'" font-size="7.1609">k</tspan><tspan x="18.949" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="21.153" y="0" font-family="'ArialMT'" font-size="7.1609">5</tspan></text> <text transform="matrix(1 0 0 1 461.751 60.9487)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">P</tspan><tspan x="4.805" y="0" font-family="'ArialMT'" font-size="7.1609">-</tspan><tspan x="7.404" y="0" font-family="'ArialMT'" font-size="7.1609">T</tspan><tspan x="11.808" y="0" font-family="'ArialMT'" font-size="7.1609">-</tspan><tspan x="14.406" y="0" font-family="'ArialMT'" font-size="7.1609">D</tspan><tspan x="19.864" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="22.068" y="0" font-family="'ArialMT'" font-size="7.1609">Total</tspan></text> <text transform="matrix(1 0 0 1 527.6309 60.8589)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Yea</tspan><tspan x="12.741" y="0" font-family="'ArialMT'" font-size="7.1609">r</tspan><tspan x="15.699" y="0" font-family="'ArialMT'" font-size="7.1609">-</tspan><tspan x="18.298" y="0" font-family="'ArialMT'" font-size="7.1609">T</tspan><tspan x="22.673" y="0" font-family="'ArialMT'" font-size="7.1609">o</tspan><tspan x="27.12" y="0" font-family="'ArialMT'" font-size="7.1609">-</tspan><tspan x="29.72" y="0" font-family="'ArialMT'" font-size="7.1609">Dat</tspan><tspan x="40.863" y="0" font-family="'ArialMT'" font-size="7.1609">e</tspan><tspan x="45.419" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="47.623" y="0" font-family="'ArialMT'" font-size="7.1609">Total</tspan></text> <text transform="matrix(1 0 0 1 112.853 72.6265)" font-family="'ArialMT'" font-size="7.1609">$</text> <text transform="matrix(1 0 0 1 148.0059 72.6265)" font-family="'ArialMT'" font-size="7.1609">%</text> <text transform="matrix(1 0 0 1 184.4619 72.6265)" font-family="'ArialMT'" font-size="7.1609">$</text> <text transform="matrix(1 0 0 1 218.9629 72.6265)" font-family="'ArialMT'" font-size="7.1609">%</text> <text transform="matrix(1 0 0 1 255.4194 72.6265)" font-family="'ArialMT'" font-size="7.1609">$</text> <text transform="matrix(1 0 0 1 289.9204 72.6265)" font-family="'ArialMT'" font-size="7.1609">%</text> <text transform="matrix(1 0 0 1 326.377 72.6265)" font-family="'ArialMT'" font-size="7.1609">$</text> <text transform="matrix(1 0 0 1 360.8779 72.6265)" font-family="'ArialMT'" font-size="7.1609">%</text> <text transform="matrix(1 0 0 1 397.334 72.6265)" font-family="'ArialMT'" font-size="7.1609">$</text> <text transform="matrix(1 0 0 1 431.835 72.6265)" font-family="'ArialMT'" font-size="7.1609">%</text> <text transform="matrix(1 0 0 1 470.2461 72.6265)" font-family="'ArialMT'" font-size="7.1609">$</text> <text transform="matrix(1 0 0 1 506.0508 72.6265)" font-family="'ArialMT'" font-size="7.1609">%</text> <text transform="matrix(1 0 0 1 546.4092 72.6265)" font-family="'ArialMT'" font-size="7.1609">$</text> <text transform="matrix(1 0 0 1 584.1689 72.6265)" font-family="'ArialMT'" font-size="7.1609">%</text> <text transform="matrix(1 0 0 1 15.1997 83.394)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Ne</tspan><tspan x="9.154" y="0" font-family="'ArialMT'" font-size="7.1609">t</tspan><tspan x="11.716" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="13.677" y="0" font-family="'ArialMT'" font-size="7.1609">-</tspan><tspan x="16.277" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="18.237" y="0" font-family="'ArialMT'" font-size="7.1609">KFC</tspan></text> <text transform="matrix(1 0 0 1 15.1997 94.1616)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Ne</tspan><tspan x="9.154" y="0" font-family="'ArialMT'" font-size="7.1609">t</tspan><tspan x="11.716" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="13.677" y="0" font-family="'ArialMT'" font-size="7.1609">-</tspan><tspan x="16.277" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="18.237" y="0" font-family="'ArialMT'" font-size="7.1609">A&amp;W</tspan></text> <text transform="matrix(1 0 0 1 15.1997 104.9287)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Ne</tspan><tspan x="9.154" y="0" font-family="'ArialMT'" font-size="7.1609">t</tspan><tspan x="11.716" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="13.677" y="0" font-family="'ArialMT'" font-size="7.1609">-</tspan><tspan x="16.277" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="18.237" y="0" font-family="'ArialMT'" font-size="7.1609">LJS</tspan></text> <text transform="matrix(1 0 0 1 15.1924 115.6963)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Ne</tspan><tspan x="9.154" y="0" font-family="'ArialMT'" font-size="7.1609">t</tspan><tspan x="11.716" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="13.677" y="0" font-family="'ArialMT'" font-size="7.1609">-</tspan><tspan x="16.277" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="18.237" y="0" font-family="'ArialMT'" font-size="7.1609">TB</tspan></text> <text transform="matrix(1 0 0 1 15.1924 126.9639)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Tota</tspan><tspan x="14.329" y="0" font-family="'ArialMT'" font-size="7.1609">l</tspan><tspan x="16.457" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="18.661" y="0" font-family="'ArialMT'" font-size="7.1609">Net</tspan></text> <text transform="matrix(1 0 0 1 15.1851 149.2949)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Las</tspan><tspan x="11.545" y="0" font-family="'ArialMT'" font-size="7.1609">t</tspan><tspan x="13.671" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="15.632" y="0" font-family="'ArialMT'" font-size="7.1609">Yea</tspan><tspan x="28.374" y="0" font-family="'ArialMT'" font-size="7.1609">r</tspan><tspan x="31.252" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="33.213" y="0" font-family="'ArialMT'" font-size="7.1609">Sales</tspan></text> <text transform="matrix(1 0 0 1 15.1855 161.0625)" font-family="'ArialMT'" font-size="7.1609">Increase</text> <text transform="matrix(1 0 0 1 15.2065 171.8296)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Las</tspan><tspan x="11.545" y="0" font-family="'ArialMT'" font-size="7.1609">t</tspan><tspan x="13.671" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="15.632" y="0" font-family="'ArialMT'" font-size="7.1609">yea</tspan><tspan x="27.178" y="0" font-family="'ArialMT'" font-size="7.1609">r</tspan><tspan x="29.949" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="31.91" y="0" font-family="'ArialMT'" font-size="7.1609">Nex</tspan><tspan x="44.644" y="0" font-family="'ArialMT'" font-size="7.1609">t</tspan><tspan x="46.884" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="48.845" y="0" font-family="'ArialMT'" font-size="7.1609">Week</tspan></text> <text transform="matrix(1 0 0 1 15.2065 193.3574)" font-family="'ArialMT'" font-size="7.1609">Chicken</text> <text transform="matrix(1 0 0 1 15.1997 205.125)" font-family="'ArialMT'" font-size="7.1609">Filets</text> <text transform="matrix(1 0 0 1 15.1997 215.8926)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Popcor</tspan><tspan x="22.689" y="0" font-family="'ArialMT'" font-size="7.1609">n</tspan><tspan x="26.686" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="28.646" y="0" font-family="'ArialMT'" font-size="7.1609">Chicken</tspan></text> <text transform="matrix(1 0 0 1 15.1997 226.6602)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Crisp</tspan><tspan x="16.71" y="0" font-family="'ArialMT'" font-size="7.1609">y</tspan><tspan x="20.828" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="22.788" y="0" font-family="'ArialMT'" font-size="7.1609">Strips</tspan></text> <text transform="matrix(1 0 0 1 15.1997 237.4272)" font-family="'ArialMT'" font-size="7.1609">Special</text> <text transform="matrix(1 0 0 1 15.1924 248.1948)" font-family="'ArialMT'" font-size="7.1609">Wings</text> <text transform="matrix(1 0 0 1 15.1924 257.9624)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Subtota</tspan><tspan x="24.686" y="0" font-family="'ArialMT'" font-size="7.1609">l</tspan><tspan x="26.448" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="28.652" y="0" font-family="'ArialMT'" font-size="7.1609">Chicken</tspan></text> <text transform="matrix(1 0 0 1 15.1851 280.2935)" font-family="'ArialMT'" font-size="7.1609">Shortening</text> <text transform="matrix(1 0 0 1 15.1851 291.5605)" font-family="'ArialMT'" font-size="7.1609">Flour</text> <text transform="matrix(1 0 0 1 15.1851 302.3281)" font-family="'ArialMT'" font-size="7.1609">Biscuits</text> <text transform="matrix(1 0 0 1 15.1851 313.0957)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Frie</tspan><tspan x="12.332" y="0" font-family="'ArialMT'" font-size="7.1609">s</tspan><tspan x="16.278" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="18.239" y="0" font-family="'ArialMT'" font-size="7.1609">/</tspan><tspan x="20.844" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="22.805" y="0" font-family="'ArialMT'" font-size="7.1609">Onio</tspan><tspan x="37.931" y="0" font-family="'ArialMT'" font-size="7.1609">n</tspan><tspan x="42.329" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="44.29" y="0" font-family="'ArialMT'" font-size="7.1609">Rings</tspan></text> <text transform="matrix(1 0 0 1 15.1851 323.9385)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Potatoe</tspan><tspan x="24.686" y="0" font-family="'ArialMT'" font-size="7.1609">s</tspan><tspan x="28.646" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="30.606" y="0" font-family="'ArialMT'" font-size="7.1609">-</tspan><tspan x="33.206" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="35.167" y="0" font-family="'ArialMT'" font-size="7.1609">Mashed</tspan></text> <text transform="matrix(1 0 0 1 15.1851 334.6309)" font-family="'ArialMT'" font-size="7.1609">Desserts</text> <text transform="matrix(1 0 0 1 15.1851 345.3979)" font-family="'ArialMT'" font-size="7.1609">Drinks</text> <text transform="matrix(1 0 0 1 15.1851 357.1655)" font-family="'ArialMT'" font-size="7.1609">Corn</text> <text transform="matrix(1 0 0 1 15.1851 367.4331)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Ms</tspan><tspan x="9.545" y="0" font-family="'ArialMT'" font-size="7.1609">c</tspan><tspan x="13.663" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="15.624" y="0" font-family="'ArialMT'" font-size="7.1609">Entrees</tspan></text> <text transform="matrix(1 0 0 1 15.1846 378.2002)" font-family="'ArialMT'" font-size="7.1609">Salads</text> <text transform="matrix(1 0 0 1 15.1846 388.9678)" font-family="'ArialMT'" font-size="7.1609">Condiments</text> <text transform="matrix(1 0 0 1 15.1846 400.2354)" font-family="'ArialMT'" font-size="7.1609">Paper</text> <text transform="matrix(1 0 0 1 15.2012 410.9385)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">A&amp;</tspan><tspan x="9.553" y="0" font-family="'ArialMT'" font-size="7.1609">W</tspan><tspan x="16.927" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="18.888" y="0" font-family="'ArialMT'" font-size="7.1609">Sandwiches</tspan></text> <text transform="matrix(1 0 0 1 15.1943 421.2051)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">LJ</tspan><tspan x="7.563" y="0" font-family="'ArialMT'" font-size="7.1609">S</tspan><tspan x="12.368" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="14.329" y="0" font-family="'ArialMT'" font-size="7.1609">Product</tspan></text> <text transform="matrix(1 0 0 1 15.1938 431.4736)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">T</tspan><tspan x="4.374" y="0" font-family="'ArialMT'" font-size="7.1609">B</tspan><tspan x="9.766" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="11.727" y="0" font-family="'ArialMT'" font-size="7.1609">Product</tspan></text> <text transform="matrix(1 0 0 1 15.208 441.2402)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Tota</tspan><tspan x="14.329" y="0" font-family="'ArialMT'" font-size="7.1609">l</tspan><tspan x="16.457" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="18.661" y="0" font-family="'ArialMT'" font-size="7.1609">C.O.S</tspan></text> <text transform="matrix(1 0 0 1 15.187 465.0713)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Hourl</tspan><tspan x="17.112" y="0" font-family="'ArialMT'" font-size="7.1609">y</tspan><tspan x="20.829" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="22.79" y="0" font-family="'ArialMT'" font-size="7.1609">Labor</tspan></text> <text transform="matrix(1 0 0 1 15.1797 474.8389)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Mgm</tspan><tspan x="15.913" y="0" font-family="'ArialMT'" font-size="7.1609">t</tspan><tspan x="18.225" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="20.186" y="0" font-family="'ArialMT'" font-size="7.1609">Labor</tspan></text> <text transform="matrix(1 0 0 1 15.1724 486.6064)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Tota</tspan><tspan x="14.329" y="0" font-family="'ArialMT'" font-size="7.1609">l</tspan><tspan x="16.457" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="18.661" y="0" font-family="'ArialMT'" font-size="7.1609">Labor</tspan></text> <text transform="matrix(1 0 0 1 15.1655 507.7412)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Tota</tspan><tspan x="14.329" y="0" font-family="'ArialMT'" font-size="7.1609">l</tspan><tspan x="16.457" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="18.661" y="0" font-family="'ArialMT'" font-size="7.1609">Controllable</tspan></text> <text transform="matrix(1 0 0 1 15.1655 530.2686)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Charg</tspan><tspan x="19.503" y="0" font-family="'ArialMT'" font-size="7.1609">e</tspan><tspan x="24.088" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="26.048" y="0" font-family="'ArialMT'" font-size="7.1609">Count</tspan></text> <text transform="matrix(1 0 0 1 15.1729 542.0361)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Charg</tspan><tspan x="19.503" y="0" font-family="'ArialMT'" font-size="7.1609">e</tspan><tspan x="24.088" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="26.048" y="0" font-family="'ArialMT'" font-size="7.1609">Ticke</tspan><tspan x="43.157" y="0" font-family="'ArialMT'" font-size="7.1609">t</tspan><tspan x="45.576" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="47.537" y="0" font-family="'ArialMT'" font-size="7.1609">Average</tspan></text> <text transform="matrix(1 0 0 1 15.1553 563.5635)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Coupo</tspan><tspan x="21.102" y="0" font-family="'ArialMT'" font-size="7.1609">n</tspan><tspan x="25.385" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="27.346" y="0" font-family="'ArialMT'" font-size="7.1609">Count</tspan></text> <text transform="matrix(1 0 0 1 15.1479 574.3311)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Coupo</tspan><tspan x="21.102" y="0" font-family="'ArialMT'" font-size="7.1609">n</tspan><tspan x="25.385" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="27.346" y="0" font-family="'ArialMT'" font-size="7.1609">$</tspan></text> <text transform="matrix(1 0 0 1 15.1582 595.8594)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Ticke</tspan><tspan x="17.108" y="0" font-family="'ArialMT'" font-size="7.1609">t</tspan><tspan x="19.528" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="21.489" y="0" font-family="'ArialMT'" font-size="7.1609">Average</tspan></text> <text transform="matrix(1 0 0 1 15.1582 617.3867)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Hea</tspan><tspan x="13.136" y="0" font-family="'ArialMT'" font-size="7.1609">d</tspan><tspan x="17.57" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="19.531" y="0" font-family="'ArialMT'" font-size="7.1609">Average</tspan></text> <text transform="matrix(1 0 0 1 15.1582 628.1543)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Piece</tspan><tspan x="17.913" y="0" font-family="'ArialMT'" font-size="7.1609">s</tspan><tspan x="22.138" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="24.099" y="0" font-family="'ArialMT'" font-size="7.1609">Scrapped</tspan></text> <text transform="matrix(1 0 0 1 15.1514 639.4219)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Piece</tspan><tspan x="17.913" y="0" font-family="'ArialMT'" font-size="7.1609">s</tspan><tspan x="22.138" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="24.099" y="0" font-family="'ArialMT'" font-size="7.1609">Unacc</tspan><tspan x="44.396" y="0" font-family="'ArialMT'" font-size="7.1609">.</tspan><tspan x="46.887" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="48.848" y="0" font-family="'ArialMT'" font-size="7.1609">For</tspan></text> <text transform="matrix(1 0 0 1 15.1514 650.6895)" font-family="'ArialMT'" font-size="7.1609">Efficiency</text> <text transform="matrix(1 0 0 1 15.1514 671.2168)"><tspan x="0" y="0" font-family="'ArialMT'" font-size="7.1609">Cas</tspan><tspan x="12.734" y="0" font-family="'ArialMT'" font-size="7.1609">h</tspan><tspan x="16.925" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="18.885" y="0" font-family="'ArialMT'" font-size="7.1609">ove</tspan><tspan x="30.431" y="0" font-family="'ArialMT'" font-size="7.1609">r</tspan><tspan x="33.202" y="0" font-family="'ArialMT'" font-size="7.1609"> </tspan><tspan x="35.163" y="0" font-family="'ArialMT'" font-size="7.1609">/(short)</tspan></text> <path stroke="#000000" d="M10,488.932"/> </g> <g id="Pieces_Unaccounted"> <g id="l_x5F_u_x5F_pieces_x5F_unaccounted"> <line id="UnaccountedFor_1_" fill="none" stroke="#000000" stroke-width="0.5" x1="10" y1="640" x2="599.5" y2="640"/> </g> </g> <g id="Total_Labor"> <g id="Double_Lines"> <line id="Btm_Line" stroke="#000000" stroke-width="0.5" x1="11" y1="490.932" x2="600.5" y2="490.932"/> <line id="Top_Line" stroke="#000000" stroke-width="0.5" x1="11" y1="488.932" x2="600.5" y2="488.932"/> </g> <line id="Line_Above" stroke="#000000" stroke-width="0.5" x1="10.5" y1="477.5" x2="600" y2="477.5"/> </g> <g id="Total_Cos"> <g id="Double_Line_3_"> <line id="Btm_Line_3_" stroke="#000000" stroke-width="0.5" x1="11" y1="444.932" x2="600.5" y2="444.932"/> <line id="Top_Line_3_" stroke="#000000" stroke-width="0.5" x1="11" y1="442.932" x2="600.5" y2="442.932"/> </g> <line id="Line_Above_6_" stroke="#000000" stroke-width="0.5" x1="10.34" y1="433.097" x2="599.84" y2="433.097"/> </g> <g id="SubTotal_Chicken"> <g id="Double_Line_2_"> <line id="Btm_Line_1_" stroke="#000000" stroke-width="0.5" x1="7" y1="261.932" x2="596.5" y2="261.932"/> <line id="Top_Line_1_" stroke="#000000" stroke-width="0.5" x1="7" y1="259.932" x2="596.5" y2="259.932"/> </g> <line id="Line_Above_1_" stroke="#000000" stroke-width="0.5" x1="7" y1="250.097" x2="596.5" y2="250.097"/> </g> <g id="total_Net"> <g id="Double_Line_1_"> <line id="Btm_Line_2_" stroke="#000000" stroke-width="0.5" x1="7" y1="130.932" x2="596.5" y2="130.932"/> <line id="Top_Line_2_" stroke="#000000" stroke-width="0.5" x1="7" y1="128.932" x2="596.5" y2="128.932"/> </g> <line id="Line_Above_3_" stroke="#000000" stroke-width="0.5" x1="7" y1="119.097" x2="596.5" y2="119.097"/> </g> <g id="Header_Underline"> <line id="Line_Above_4_" stroke="#000000" stroke-width="0.5" x1="8.34" y1="74.5" x2="597.84" y2="74.5"/> </g> <g id="Total_Controllable"> <line id="Line_Above_2_" stroke="#000000" x1="7" y1="498.066" x2="600.5" y2="498.066"/> <line id="Line_Under" stroke="#000000" x1="7" y1="509.329" x2="600.5" y2="509.329"/> </g> </svg> The above code is generated xml file, and i need to write a xslt transformation to get the fo file, for the PDF generation, how do I do it?? The doubt I have is, that I dont now how to represent the tags in xslt, and also I need to represent the line, path and text in the form of xslt. how can I do this any ideas, with really get me going... Actually I have to use a style sheet like this: <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format" > <fo:layout-master-set> <fo:simple-page-master margin-right="1.5cm" margin-left="1.5cm" margin-bottom="2cm" margin-top="1cm" page-width="21cm" page-height="29.7cm" master-name="first"> <fo:region-body margin-top="1cm"/> <fo:region-before extent="1cm"/> <fo:region-after extent="1.5cm"/> </fo:simple-page-master> </fo:layout-master-set> <fo:page-sequence master-reference="first"> <fo:static-content flow-name="xsl-region-before"> <fo:block line-height="14pt" font-size="10pt" text-align="end">Embedding SVG examples - Practise</fo:block> </fo:static-content> <fo:static-content flow-name="xsl-region-after"> <fo:block line-height="14pt" font-size="10pt" text-align="end">Page <fo:page-number/> </fo:block> </fo:static-content> <fo:flow flow-name="xsl-region-body"> <fo:block text-align="center" font-weight="bold" font-size="14pt" space-before.optimum="3pt" space-after.optimum="15pt">Embedding SVG</fo:block> <fo:block space-before.optimum="3pt" space-after.optimum="20pt"> <fo:instream-foreign-object> <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="542px" height="505px"> <svg:title>A less cute tiger</svg:title> <xsl:for-each select="svg/switch/g/g/path"> <svg:g style="fill: #ffffff; stroke:#000000; stroke-width:0.25"> <svg:path> <xsl:variable name="s"> <xsl:value-of select="translate(@d,' ','')"/> </xsl:variable> <xsl:attribute name="d"><xsl:value-of select="translate($s,',',' ')"/></xsl:attribute> </svg:path> </svg:g> </xsl:for-each> <xsl:for-each select="svg/switch/g/g/g/path"> <svg:g style="fill: #ffffff; stroke:#000000; stroke-width:0.5; fill-rule=evenodd; clip-rule=evenodd; stroke-linejoin=round"> <svg:path> <xsl:variable name="s"> <xsl:value-of select="translate(@d,' ','')"/> </xsl:variable> <xsl:attribute name="d"><xsl:value-of select="translate($s,',',' ')"/></xsl:attribute> </svg:path> </svg:g> </xsl:for-each> </svg:svg> </fo:instream-foreign-object> </fo:block> <fo:block><xsl:apply-templates/></fo:block> </fo:flow> </fo:page-sequence> </fo:root>

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