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• Scale a game object to Bounds

  - by Spikeh

  I'm trying to scale a lot of dynamically created game objects in Unity3D to the bounds of a sphere collider, based on the size of their current mesh. Each object has a different scale and mesh size. Some are bigger than the AABB of the collider, and some are smaller. Here's the script I've written so far: private void ScaleToCollider(GameObject objectToScale, SphereCollider sphere) { var currentScale = objectToScale.transform.localScale; var currentSize = objectToScale.GetMeshHierarchyBounds().size; var targetSize = (sphere.radius * 2); var newScale = new Vector3 { x = targetSize * currentScale.x / currentSize.x, y = targetSize * currentScale.y / currentSize.y, z = targetSize * currentScale.z / currentSize.z }; Debug.Log("{0} Current scale: {1}, targetSize: {2}, currentSize: {3}, newScale: {4}, currentScale.x: {5}, currentSize.x: {6}", objectToScale.name, currentScale, targetSize, currentSize, newScale, currentScale.x, currentSize.x); //DoorDevice_meshBase Current scale: (0.1, 4.0, 3.0), targetSize: 5, currentSize: (2.9, 4.0, 1.1), newScale: (0.2, 5.0, 13.4), currentScale.x: 0.125, currentSize.x: 2.869114 //RedControlPanelForAirlock_meshBase Current scale: (1.0, 1.0, 1.0), targetSize: 5, currentSize: (0.0, 0.3, 0.2), newScale: (147.1, 16.7, 25.0), currentScale.x: 1, currentSize.x: 0.03400017 objectToScale.transform.localScale = newScale; } And the supporting extension method: public static Bounds GetMeshHierarchyBounds(this GameObject go) { var bounds = new Bounds(); // Not used, but a struct needs to be instantiated if (go.renderer != null) { bounds = go.renderer.bounds; // Make sure the parent is included Debug.Log("Found parent bounds: " + bounds); //bounds.Encapsulate(go.renderer.bounds); } foreach (var c in go.GetComponentsInChildren<MeshRenderer>()) { Debug.Log("Found {0} bounds are {1}", c.name, c.bounds); if (bounds.size == Vector3.zero) { bounds = c.bounds; } else { bounds.Encapsulate(c.bounds); } } return bounds; } After the re-scale, there doesn't seem to be any consistency to the results - some objects with completely uniform scales (x,y,z) seem to resize correctly, but others don't :| Its one of those things I've been trying to fix for so long I've lost all grasp on any of the logic :| Any help would be appreciated!

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• Good practices for large scale development/delivery of software

  - by centic

  What practices do you apply when working with large teams on multiple versions of a software or multiple competing projects? What are best practices that can be used to still get the right things done first? Is there information available how big IT companies do development and management of some of their large projects, e.g. things like Oracle Database, WebSphere Application Server, Microsoft Windows, ....?

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• how to make a function recursive

  - by tom smith

  i have this huge function and i am wondering how to make it recursive. i have the base case which should never come true, so it should always go to else and keep calling itself with the variable t increases. any help would be great thanks def draw(x, y, t, planets): if 'Satellites' in planets["Moon"]: print ("fillcircle", x, y, planets["Moon"]['Radius']*scale) else: while True: print("refresh") print("colour 0 0 0") print("clear") print("colour 255 255 255") print("fillcircle",x,y,planets['Sun']['Radius']*scale) print("text ", "\"Sun\"",x+planets['Sun']['Radius']*scale,y) if "Mercury" in planets: r_Mercury=planets['Mercury']['Orbital Radius']*scale; print("circle",x,y,r_Mercury) r_Xmer=x+math.sin(t*2*math.pi/planets['Mercury']['Period'])*r_Mercury r_Ymer=y+math.cos(t*2*math.pi/planets['Mercury']['Period'])*r_Mercury print("fillcircle",r_Xmer,r_Ymer,3) print("text ", "\"Mercury\"",r_Xmer+planets['Mercury']['Radius']*scale,r_Ymer) if "Venus" in planets: r_Venus=planets['Venus']['Orbital Radius']*scale; print("circle",x,y,r_Venus) r_Xven=x+math.sin(t*2*math.pi/planets['Venus']['Period'])*r_Venus r_Yven=y+math.cos(t*2*math.pi/planets['Venus']['Period'])*r_Venus print("fillcircle",r_Xven,r_Yven,3) print("text ", "\"Venus\"",r_Xven+planets['Venus']['Radius']*scale,r_Yven) if "Earth" in planets: r_Earth=planets['Earth']['Orbital Radius']*scale; print("circle",x,y,r_Earth) r_Xe=x+math.sin(t*2*math.pi/planets['Earth']['Period'])*r_Earth r_Ye=y+math.cos(t*2*math.pi/planets['Earth']['Period'])*r_Earth print("fillcircle",r_Xe,r_Ye,3) print("text ", "\"Earth\"",r_Xe+planets['Earth']['Radius']*scale,r_Ye) if "Moon" in planets: r_Moon=planets['Moon']['Orbital Radius']*scale; print("circle",r_Xe,r_Ye,r_Moon) r_Xm=r_Xe+math.sin(t*2*math.pi/planets['Moon']['Period'])*r_Moon r_Ym=r_Ye+math.cos(t*2*math.pi/planets['Moon']['Period'])*r_Moon print("fillcircle",r_Xm,r_Ym,3) print("text ", "\"Moon\"",r_Xm+planets['Moon']['Radius']*scale,r_Ym) if "Mars" in planets: r_Mars=planets['Mars']['Orbital Radius']*scale; print("circle",x,y,r_Mars) r_Xmar=x+math.sin(t*2*math.pi/planets['Mars']['Period'])*r_Mars r_Ymar=y+math.cos(t*2*math.pi/planets['Mars']['Period'])*r_Mars print("fillcircle",r_Xmar,r_Ymar,3) print("text ", "\"Mars\"",r_Xmar+planets['Mars']['Radius']*scale,r_Ymar) if "Phobos" in planets: r_Phobos=planets['Phobos']['Orbital Radius']*scale; print("circle",r_Xmar,r_Ymar,r_Phobos) r_Xpho=r_Xmar+math.sin(t*2*math.pi/planets['Phobos']['Period'])*r_Phobos r_Ypho=r_Ymar+math.cos(t*2*math.pi/planets['Phobos']['Period'])*r_Phobos print("fillcircle",r_Xpho,r_Ypho,3) print("text ", "\"Phobos\"",r_Xpho+planets['Phobos']['Radius']*scale,r_Ypho) if "Deimos" in planets: r_Deimos=planets['Deimos']['Orbital Radius']*scale; print("circle",r_Xmar,r_Ymar,r_Deimos) r_Xdei=r_Xmar+math.sin(t*2*math.pi/planets['Deimos']['Period'])*r_Deimos r_Ydei=r_Ymar+math.cos(t*2*math.pi/planets['Deimos']['Period'])*r_Deimos print("fillcircle",r_Xdei,r_Ydei,3) print("text ", "\"Deimos\"",r_Xpho+planets['Deimos']['Radius']*scale,r_Ydei) if "Ceres" in planets: r_Ceres=planets['Ceres']['Orbital Radius']*scale; print("circle",x,y,r_Ceres) r_Xcer=x+math.sin(t*2*math.pi/planets['Ceres']['Period'])*r_Ceres r_Ycer=y+math.cos(t*2*math.pi/planets['Ceres']['Period'])*r_Ceres print("fillcircle",r_Xcer,r_Ycer,3) print("text ", "\"Ceres\"",r_Xcer+planets['Ceres']['Radius']*scale,r_Ycer) if "Jupiter" in planets: r_Jupiter=planets['Jupiter']['Orbital Radius']*scale; print("circle",x,y,r_Jupiter) r_Xjup=x+math.sin(t*2*math.pi/planets['Jupiter']['Period'])*r_Jupiter r_Yjup=y+math.cos(t*2*math.pi/planets['Jupiter']['Period'])*r_Jupiter print("fillcircle",r_Xjup,r_Yjup,3) print("text ", "\"Jupiter\"",r_Xjup+planets['Jupiter']['Radius']*scale,r_Yjup) if "Io" in planets: r_Io=planets['Io']['Orbital Radius']*scale; print("circle",r_Xjup,r_Yjup,r_Io) r_Xio=r_Xjup+math.sin(t*2*math.pi/planets['Io']['Period'])*r_Io r_Yio=r_Yjup+math.cos(t*2*math.pi/planets['Io']['Period'])*r_Io print("fillcircle",r_Xio,r_Yio,3) print("text ", "\"Io\"",r_Xio+planets['Io']['Radius']*scale,r_Yio) if "Europa" in planets: r_Europa=planets['Europa']['Orbital Radius']*scale; print("circle",r_Xjup,r_Yjup,r_Europa) r_Xeur=r_Xjup+math.sin(t*2*math.pi/planets['Europa']['Period'])*r_Europa r_Yeur=r_Yjup+math.cos(t*2*math.pi/planets['Europa']['Period'])*r_Europa print("fillcircle",r_Xeur,r_Yeur,3) print("text ", "\"Europa\"",r_Xeur+planets['Europa']['Radius']*scale,r_Yeur) if "Ganymede" in planets: r_Ganymede=planets['Ganymede']['Orbital Radius']*scale; print("circle",r_Xjup,r_Yjup,r_Ganymede) r_Xgan=r_Xjup+math.sin(t*2*math.pi/planets['Ganymede']['Period'])*r_Ganymede r_Ygan=r_Yjup+math.cos(t*2*math.pi/planets['Ganymede']['Period'])*r_Ganymede print("fillcircle",r_Xgan,r_Ygan,3) print("text ", "\"Ganymede\"",r_Xgan+planets['Ganymede']['Radius']*scale,r_Ygan) if "Callisto" in planets: r_Callisto=planets['Callisto']['Orbital Radius']*scale; print("circle",r_Xjup,r_Yjup,r_Callisto) r_Xcal=r_Xjup+math.sin(t*2*math.pi/planets['Callisto']['Period'])*r_Callisto r_Ycal=r_Yjup+math.cos(t*2*math.pi/planets['Callisto']['Period'])*r_Callisto print("fillcircle",r_Xcal,r_Ycal,3) print("text ", "\"Callisto\"",r_Xcal+planets['Callisto']['Radius']*scale,r_Ycal) if "Saturn" in planets: r_Saturn=planets['Saturn']['Orbital Radius']*scale; print("circle",x,y,r_Saturn) r_Xsat=x+math.sin(t*2*math.pi/planets['Saturn']['Period'])*r_Saturn r_Ysat=y+math.cos(t*2*math.pi/planets['Saturn']['Period'])*r_Saturn print("fillcircle",r_Xsat,r_Ysat,3) print("text ", "\"Saturn\"",r_Xsat+planets['Saturn']['Radius']*scale,r_Ysat) if "Mimas" in planets: r_Mimas=planets['Mimas']['Orbital Radius']*scale; print("circle",r_Xsat,r_Ysat,r_Mimas) r_Xmim=r_Xsat+math.sin(t*2*math.pi/planets['Mimas']['Period'])*r_Mimas r_Ymim=r_Ysat+math.cos(t*2*math.pi/planets['Mimas']['Period'])*r_Mimas print("fillcircle",r_Xmim,r_Ymim,3) print("text ", "\"Mimas\"",r_Xmim+planets['Mimas']['Radius']*scale,r_Ymim) if "Enceladus" in planets: r_Enceladus=planets['Enceladus']['Orbital Radius']*scale; print("circle",r_Xsat,r_Ysat,r_Enceladus) r_Xenc=r_Xsat+math.sin(t*2*math.pi/planets['Enceladus']['Period'])*r_Enceladus r_Yenc=r_Ysat+math.cos(t*2*math.pi/planets['Enceladus']['Period'])*r_Enceladus print("fillcircle",r_Xenc,r_Yenc,3) print("text ", "\"Enceladus\"",r_Xenc+planets['Enceladus']['Radius']*scale,r_Yenc) if "Tethys" in planets: r_Tethys=planets['Tethys']['Orbital Radius']*scale; print("circle",r_Xsat,r_Ysat,r_Tethys) r_Xtet=r_Xsat+math.sin(t*2*math.pi/planets['Tethys']['Period'])*r_Tethys r_Ytet=r_Ysat+math.cos(t*2*math.pi/planets['Tethys']['Period'])*r_Tethys print("fillcircle",r_Xtet,r_Ytet,3) print("text ", "\"Tethys\"",r_Xtet+planets['Tethys']['Radius']*scale,r_Ytet) if "Dione" in planets: r_Dione=planets['Dione']['Orbital Radius']*scale; print("circle",r_Xsat,r_Ysat,r_Dione) r_Xdio=r_Xsat+math.sin(t*2*math.pi/planets['Dione']['Period'])*r_Dione r_Ydio=r_Ysat+math.cos(t*2*math.pi/planets['Dione']['Period'])*r_Dione print("fillcircle",r_Xdio,r_Ydio,3) print("text ", "\"Dione\"",r_Xdio+planets['Dione']['Radius']*scale,r_Ydio) if "Rhea" in planets: r_Rhea=planets['Rhea']['Orbital Radius']*scale; print("circle",r_Xsat,r_Ysat,r_Rhea) r_Xrhe=r_Xsat+math.sin(t*2*math.pi/planets['Rhea']['Period'])*r_Rhea r_Yrhe=r_Ysat+math.cos(t*2*math.pi/planets['Rhea']['Period'])*r_Rhea print("fillcircle",r_Xrhe,r_Yrhe,3) print("text ", "\"Rhea\"",r_Xrhe+planets['Rhea']['Radius']*scale,r_Yrhe) if "Titan" in planets: r_Titan=planets['Titan']['Orbital Radius']*scale; print("circle",r_Xsat,r_Ysat,r_Titan) r_Xtit=r_Xsat+math.sin(t*2*math.pi/planets['Titan']['Period'])*r_Titan r_Ytit=r_Ysat+math.cos(t*2*math.pi/planets['Titan']['Period'])*r_Titan print("fillcircle",r_Xtit,r_Ytit,3) print("text ", "\"Titan\"",r_Xtit+planets['Titan']['Radius']*scale,r_Ytit) if "Iapetus" in planets: r_Iapetus=planets['Iapetus']['Orbital Radius']*scale; print("circle",r_Xsat,r_Ysat,r_Iapetus) r_Xiap=r_Xsat+math.sin(t*2*math.pi/planets['Iapetus']['Period'])*r_Iapetus r_Yiap=r_Ysat+math.cos(t*2*math.pi/planets['Iapetus']['Period'])*r_Iapetus print("fillcircle",r_Xiap,r_Yiap,3) print("text ", "\"Iapetus\"",r_Xiap+planets['Iapetus']['Radius']*scale,r_Yiap) if "Uranus" in planets: r_Uranus=planets['Uranus']['Orbital Radius']*scale; print("circle",x,y,r_Uranus) r_Xura=x+math.sin(t*2*math.pi/planets['Uranus']['Period'])*r_Uranus r_Yura=y+math.cos(t*2*math.pi/planets['Uranus']['Period'])*r_Uranus print("fillcircle",r_Xura,r_Yura,3) print("text ", "\"Uranus\"",r_Xura+planets['Uranus']['Radius']*scale,r_Yura) if "Puck" in planets: r_Puck=planets['Puck']['Orbital Radius']*scale; print("circle",r_Xura,r_Yura,r_Puck) r_Xpuc=r_Xura+math.sin(t*2*math.pi/planets['Puck']['Period'])*r_Puck r_Ypuc=r_Yura+math.cos(t*2*math.pi/planets['Puck']['Period'])*r_Puck print("fillcircle",r_Xpuc,r_Ypuc,3) print("text ", "\"Puck\"",r_Xpuc+planets['Puck']['Radius']*scale,r_Ypuc) if "Miranda" in planets: r_Miranda=planets['Miranda']['Orbital Radius']*scale; print("circle",r_Xura,r_Yura,r_Miranda) r_Xmira=r_Xura+math.sin(t*2*math.pi/planets['Miranda']['Period'])*r_Miranda r_Ymira=r_Yura+math.cos(t*2*math.pi/planets['Miranda']['Period'])*r_Miranda print("fillcircle",r_Xmira,r_Ymira,3) print("text ", "\"Miranda\"",r_Xmira+planets['Miranda']['Radius']*scale,r_Ymira) if "Ariel" in planets: r_Ariel=planets['Ariel']['Orbital Radius']*scale; print("circle",r_Xura,r_Yura,r_Ariel) r_Xari=r_Xura+math.sin(t*2*math.pi/planets['Ariel']['Period'])*r_Ariel r_Yari=r_Yura+math.cos(t*2*math.pi/planets['Ariel']['Period'])*r_Ariel print("fillcircle",r_Xari,r_Yari,3) print("text ", "\"Ariel\"",r_Xari+planets['Ariel']['Radius']*scale,r_Yari) if "Umbriel" in planets: r_Umbriel=planets['Umbriel']['Orbital Radius']*scale; print("circle",r_Xura,r_Yura,r_Umbriel) r_Xumb=r_Xura+math.sin(t*2*math.pi/planets['Umbriel']['Period'])*r_Umbriel r_Yumb=r_Yura+math.cos(t*2*math.pi/planets['Umbriel']['Period'])*r_Umbriel print("fillcircle",r_Xumb,r_Yumb,3) print("text ", "\"Umbriel\"",r_Xumb+planets['Umbriel']['Radius']*scale,r_Yumb) if "Titania" in planets: r_Titania=planets['Titania']['Orbital Radius']*scale; print("circle",r_Xura,r_Yura,r_Titania) r_Xtita=r_Xura+math.sin(t*2*math.pi/planets['Titania']['Period'])*r_Titania r_Ytita=r_Yura+math.cos(t*2*math.pi/planets['Titania']['Period'])*r_Titania print("fillcircle",r_Xtita,r_Ytita,3) print("text ", "\"Titania\"",r_Xtita+planets['Titania']['Radius']*scale,r_Ytita) if "Oberon" in planets: r_Oberon=planets['Oberon']['Orbital Radius']*scale; print("circle",r_Xura,r_Yura,r_Oberon) r_Xober=r_Xura+math.sin(t*2*math.pi/planets['Oberon']['Period'])*r_Oberon r_Yober=r_Yura+math.cos(t*2*math.pi/planets['Oberon']['Period'])*r_Oberon print("fillcircle",r_Xober,r_Yober,3) print("text ", "\"Oberon\"",r_Xober+planets['Oberon']['Radius']*scale,r_Yober) if "Neptune" in planets: r_Neptune=planets['Neptune']['Orbital Radius']*scale; print("circle",x,y,r_Neptune) r_Xnep=x+math.sin(t*2*math.pi/planets['Neptune']['Period'])*r_Neptune r_Ynep=y+math.cos(t*2*math.pi/planets['Neptune']['Period'])*r_Neptune print("fillcircle",r_Xnep,r_Ynep,3) print("text ", "\"Neptune\"",r_Xnep+planets['Neptune']['Radius']*scale,r_Ynep) if "Titan" in planets: r_Titan=planets['Titan']['Orbital Radius']*scale; print("circle",r_Xnep,r_Ynep,r_Titan) r_Xtita=r_Xnep+math.sin(t*2*math.pi/planets['Titan']['Period'])*r_Titan r_Ytita=r_Ynep+math.cos(t*2*math.pi/planets['Titan']['Period'])*r_Titan print("fillcircle",r_Xtita,r_Ytita,3) print("text ", "\"Titan\"",r_Xtita+planets['Titan']['Radius']*scale,r_Ytita) t += 0.003 print(draw(x, y, t, planets))

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• Large Scale NAT maximum concurrent connections issue

  - by ffffff

  When I open Google Maps on a client PC that is behind a Large Scale NAT (LSN, Carrier grade NAT) the number of concurrent connections is limited to 15. Do you have any solutions how to enable more connections when behind an LSN(CGN)?

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• How to scale bandwidth of a startup website?

  - by EmpireJones

  I would like to host a website using my home internet connection, with multiple computers acting as nodes of web server, db, apache cassandra clusters, and memcached clusters. When this website gets to the point where I outgrow my slow home internet connection, what is the easiest/best way to scale the internet bandwidth?

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• Calculating a child Position, Rotation and Scale values?

  - by Sergio Plascencia

  I am making my own game editor(just for fun) anyway I have problem that I had several days trying to resolve but I have been unsuccessful. Here goes... I have an object "A": Position: (3,3,3), Rotation: (45,10,0), Scale(1,2,2.5) And an object "B": Position: (1,1,1), Rotation: (10,34,18), Scale(1.5,2,1) I now make a parent/child relationship. "B" is a child of "A": A |--B When I do the relationship I need to re-calculate the Child("B") Position, Rotation and Scale such that it maintains its current position, rotation and scale(Location in world). So for child position "B" it would now be (-2, -2, -2) since now "A" it is center and (-2, -2, -2) will keep the object in its same position. I think I got the Position and scale figure out, but rotation I cant. So I was trying to figure out what to do and what I did is opened Unity and run the same example and I did noticed that when making an abject a child object the child object did not moved at all but had its Position, Rotation and Scale values changed(Related to the parent). For example: Unity (Parent Object "A"): Position: (0,0,0) Rotation: (45,10,0) Scale: (1,1,1) Unity (Child Object "B"): Position: (0,0,0) Rotation: (0,0,0) Scale: (1,1,1) When making it a parent child relation("B" is a child of "A") the child object("B") in its Rotation values now has: X: -44.13605 Y: -14.00195 Z: 9.851074 If I plug the same values to my editor(To the child "B" rotation X, Y, Z values) the object does not move at all. So I basically need to know how did Unity arrive at those rotation values for the child(What are the calculations?). If you can help and put all the equations for the Position, Rotation or Scale then I can double check I am doing it correctly but with the Rotation I really need help. Thanks!

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• Cocos2d sprite's parent not reflecting true scale value

  - by Paul Renton

  I am encountering issues with determining a CCSprite's parent node's scale value. In my game I have a class that extends CCLayer and scales itself based on game triggers. Certain child sprites of this CCLayer have mathematical calculations that become inaccurate once I scale the parent CCLayer. For instance, I have a tank sprite that needs to determine its firing point within the parent node. Whenever I scale the layer and ask the layer for its scale values, they are accurate. However, when I poll the sprites contained within the layer for their parent's scale values, they always appear as one. // From within the sprite CCLOG(@"ChildSprite-> Parent's scale values are scaleX: %f, scaleY: %f", self.parent.scaleX, self.parent.scaleY); // Outputs 1.0,1.0 // From within the layer CCLOG(@"Layer-> ScaleX : %f, ScaleY: %f , SCALE: %f", self.scaleX, self.scaleY, self.scale); // Output is 0.80,0.80 Could anyone explain to me why this is the case? I don't understand why these values are different. Maybe I don't understand the inner design of Cocos2d fully. Any help is appreciated.

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• How do I scale a UIButton's imageView?

  - by vcLwei

  Hey guys! I create a UIButton instance(named "button") with a image use [UIButton setImage:forState:] function, the button.frame is larger than the image's size. Now I want to scale this button's image smaller. I had tried to change button.imageView.frame, button.imageView.bounds and button.imageView.contentMode, but all seem ineffective. Hopefully someone can help me how to scale a UIButton's imageView.Thanks! my create UIButton instance code: UIButton *button = [[UIButton alloc] init]; [button setImage:image forState:UIControlStateNormal]; my try to scale the image code: button.imageView.contentMode = UIViewContentModeScaleAspectFit; button.imageView.bounds = CGRectMake(0, 0, 70, 70); and: button.imageView.contentMode = UIViewContentModeScaleAspectFit; button.imageView.frame = CGRectMake(0, 0, 70, 70);

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• TabHost / TabWidget - Scale Background Image ?

  - by user359519

  I need to scale my TabWidget background images so they maintain aspect ratio. I am using a TabHost with a TabWidget. I am then using setBackgroundDrawable to set the images. I found a close answer here - Background in tab widget ignore scaling. However, I'm not sure just where to add the new Drawable code. (Working with the HelloTabWidget example, none of my modules use RelativeLayout, and I don't see any layout for "tabcontent".) I also found this thread - Android: Scale a Drawable or background image?. According to it, it sounds like I would have to pre-scale my images, which defeats the whole purpose of making them scaleable. I also found another thread where someone subclassed the Drawable class so it would either not scale, or it would scale properly. I can't find it now, but that seems like a LOT to go through when you should just be able to do something simple like mTab.setScaleType(centerInside). Here's my code: main.xml: <?xml version="1.0" encoding="utf-8"?> <TabHost xmlns:android="http://schemas.android.com/apk/res/android" android:id="@android:id/tabhost" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="@drawable/main_background"> <LinearLayout android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <FrameLayout android:id="@android:id/tabcontent" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="1"/> <TabWidget android:id="@android:id/tabs" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="0"/> </LinearLayout> </TabHost> main activity: tabHost.setOnTabChangedListener(new OnTabChangeListener() { TabHost changedTabHost = getTabHost(); TabWidget changedTabWidget = getTabWidget(); View changedView = changedTabHost.getTabWidget().getChildAt(0); public void onTabChanged(String tabId) { int selectedTab = changedTabHost.getCurrentTab(); TabWidget tw = getTabWidget(); if(selectedTab == 0) { //setTitle("Missions Timeline"); View tempView = tabHost.getTabWidget().getChildAt(0); tempView.setBackgroundDrawable(getResources().getDrawable(R.drawable.tab_timeline_on)); tempView = tabHost.getTabWidget().getChildAt(1); tempView.setBackgroundDrawable(getResources().getDrawable(R.drawable.tab_map_off)); tempView = tabHost.getTabWidget().getChildAt(2); tempView.setBackgroundDrawable(getResources().getDrawable(R.drawable.tab_search_off)); tempView = tabHost.getTabWidget().getChildAt(3); tempView.setBackgroundDrawable(getResources().getDrawable(R.drawable.tab_news_off)); tempView = tabHost.getTabWidget().getChildAt(4); tempView.setBackgroundDrawable(getResources().getDrawable(R.drawable.tab_license_off)); //ImageView iv = (ImageView)tabHost.getTabWidget().getChildAt(0).findViewById(android.R.id.icon); //iv.setImageDrawable(getResources().getDrawable(R.drawable.tab_timeline_on)); //iv = (ImageView)tabHost.getTabWidget().getChildAt(1).findViewById(android.R.id.icon); //iv.setImageDrawable(getResources().getDrawable(R.drawable.tab_map_off)); } else if (selectedTab == 1) { //setTitle("Spinoffs Around You"); View tempView = tabHost.getTabWidget().getChildAt(0); tempView.setBackgroundDrawable(getResources().getDrawable(R.drawable.tab_timeline_off)); tempView = tabHost.getTabWidget().getChildAt(1); tempView.setBackgroundDrawable(getResources().getDrawable(R.drawable.tab_map_on)); tempView = tabHost.getTabWidget().getChildAt(2); tempView.setBackgroundDrawable(getResources().getDrawable(R.drawable.tab_search_off)); tempView = tabHost.getTabWidget().getChildAt(3); tempView.setBackgroundDrawable(getResources().getDrawable(R.drawable.tab_news_off)); tempView = tabHost.getTabWidget().getChildAt(4); tempView.setBackgroundDrawable(getResources().getDrawable(R.drawable.tab_license_off)); } I also tried 9patch images, but they wind up being too small. So, what's the best way to go about this?

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• Webkit iPhone App : How to dynamically change the user zoom (or scale, pich & zoom) in the viewport

  - by Samuel Michelot

  I use JQTouch for an iPhone app. JQtouch disable by default the possibility to pinch&zoom the page. For one page (containing a big image), i need to enable the pinch & zoom feature. This is easy : var viewport = $("head meta[name=viewport]"); viewport.attr('content', 'width=320, initial-scale=1, maximum-scale=10.0, minimum-scale=1, user-scalable=1'); But after user has play with the pinch & zoom, I need to dynamically reset the zoom (scale) to the default. I tried to reset the viewport: viewport.attr('content', 'width=320, initial-scale=1.0, maximum-scale=1.0, user-scalable=0;'); After calling the above code, it's not possible to zoom anymore (because of user-scalable=0;), but it doesn't change the current scale to the default. I am looking for something like setScale(1), or to change an attribute like current-scale=1 Any idea ?

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• iteration in latex

  - by Tim

  Hi, I would like to use some iteration control flow to simplify the following latex code \begin{sidewaystable} \caption{A glance of images} \centering \begin{tabular}{| c ||c| c| c |c| c|| c |c| c|c|c| } \hline \backslashbox{Theme}{Class} &\multicolumn{5}{|c|}{Class 0} & \multicolumn{5}{|c|}{Class 1} \\ \hline \hline 1 & \includegraphics[scale=2]{../../results/1/0_1.eps} &\includegraphics[scale=2]{../../results/1/0_2.eps} &\includegraphics[scale=2]{../../results/1/0_3.eps} &\includegraphics[scale=2]{../../results/1/0_4.eps} &\includegraphics[scale=2]{../../results/1/0_5.eps} &\includegraphics[scale=2]{../../results/1/1_1.eps} &\includegraphics[scale=2]{../../results/1/1_2.eps} &\includegraphics[scale=2]{../../results/1/1_3.eps} &\includegraphics[scale=2]{../../results/1/1_4.eps} &\includegraphics[scale=2]{../../results/1/1_5.eps} \\ \hline \hline 2 & \includegraphics[scale=2]{../../results/2/0_1.eps} &\includegraphics[scale=2]{../../results/2/0_2.eps} &\includegraphics[scale=2]{../../results/2/0_3.eps} &\includegraphics[scale=2]{../../results/2/0_4.eps} &\includegraphics[scale=2]{../../results/2/0_5.eps} &\includegraphics[scale=2]{../../results/2/1_1.eps} &\includegraphics[scale=2]{../../results/2/1_2.eps} &\includegraphics[scale=2]{../../results/2/1_3.eps} &\includegraphics[scale=2]{../../results/2/1_4.eps} &\includegraphics[scale=2]{../../results/2/1_5.eps} \\ \hline ... % similarly for 3, 4, ..., 22 \hline 23 & \includegraphics[scale=2]{../../results/23/0_1.eps} &\includegraphics[scale=2]{../../results/23/0_2.eps} &\includegraphics[scale=2]{../../results/23/0_3.eps} &\includegraphics[scale=2]{../../results/23/0_4.eps} &\includegraphics[scale=2]{../../results/23/0_5.eps} &\includegraphics[scale=2]{../../results/23/1_1.eps} &\includegraphics[scale=2]{../../results/23/1_2.eps} &\includegraphics[scale=2]{../../results/23/1_3.eps} &\includegraphics[scale=2]{../../results/23/1_4.eps} &\includegraphics[scale=2]{../../results/23/1_5.eps} \\ \hline \end{tabular} \end{sidewaystable} I learn that the forloop package provides the for loop. But I am not sure how to apply it to my case? Or other methods not by forloop? Thanks and regards! Update: If I also want to simply another similar case, where the only difference is that the directory does not run from 1, 2, to 23, but in some arbitrary order such as 3, 2, 6, 9,..., or even a list of strings such as dira, dirc, dird, dirb,.... How to make the latex code into loops then? Thanks!

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• ImageView scale type not working in list activity

  - by Justin

  I have used ImageView's before and understand the different scale types that can be set... However I am having an incredibly difficult time trying to get an ImageView to scale properly in the row of a ListActivity or an ExpandableListActivity. I have tried setting the android:scaleType property to every single value but the image never scales down. I have set the min and max sizes as well and they don't seem to have any effect. I have done both of these things in both the XMl and in code to no avail... Does anyone have any ideas or perhaps a workaround? Thanks in advance!

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• Get NSTextField contents to scale

  - by Matt S.

  How can I have the text scale to fit the bounds I gave it?

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• RubyQT QGraphicsview scale images to fit window

  - by shadowskill

  I'm trying to make an image scale inside of a QGraphicsView and having zero success. I did find this C++ question with what seemed to be the same problem:http://stackoverflow.com/questions/2489754/qgraphicsview-scrolling-and-image-scaling-cropping I borrowed the approach of overriding the drawback/foreground. However when I run the script I'm greeted with a method_missing error: method_missing: undefined method drawPixmap for #<Qt::Painter:0x7ff11eb9b088> QPaintDevice: Cannot destroy paint device that is being painted What should I be doing to get the QGraphicsView to behave the way I want? class Imageview < Qt::GraphicsView attr_reader :pixmap def initialize(parent=nil) # @parent=parent super() @pixmap=pixmap Qt::MetaObject.connectSlotsByName(self) end def loadimage(pixmap) @pixmap=pixmap end def drawForeground(painter, rect) #size=event.size() #item= self.items()[0] #Qt::GraphicsPixmapItem.new #pixmap=@pixmap #painter=Qt::Painter.new [email protected](Qt::Size.new(rect.width,rect.height),Qt::KeepAspectRatio, Qt::SmoothTransformation) # painter.begin(self) painter.drawPixmap(rect,sized,Qt::Rect.new(0.0, 0.0, sized.width,sized.height)) #painter.end() # item.setPixmap(sized) #painter.end self.centerOn(1.0,1.0) #item.scale() # item.setTransformationMode(Qt::FastTransformation) # self.fitInView(item) end def updateSceneRect painter=Qt::Painter.new() drawForeground(painter,self.sceneRect) end end app=Qt::Application.new(ARGV) #grview=Imageview.new pic=Qt::Pixmap.new('pic') grview=Imageview.new() grview.loadimage(pic) scene=Qt::GraphicsScene.new #scene.addPixmap(pic) grview.setScene(scene) #grview.fitInView(scene) grview.renderHint=Qt::Painter::Antialiasing | Qt::Painter::SmoothPixmapTransform grview.backgroundBrush = Qt::Brush.new(Qt::Color.new(230, 200, 167)) grview.show app.exec

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• AWS: setting up auto-scale for EC2 instances

  - by Elton Stoneman

  Originally posted on: http://geekswithblogs.net/EltonStoneman/archive/2013/10/16/aws-setting-up-auto-scale-for-ec2-instances.aspxWith Amazon Web Services, there’s no direct equivalent to Azure Worker Roles – no Elastic Beanstalk-style application for .NET background workers. But you can get the auto-scale part by configuring an auto-scaling group for your EC2 instance. This is a step-by-step guide, that shows you how to create the auto-scaling configuration, which for EC2 you need to do with the command line, and then link your scaling policies to CloudWatch alarms in the Web console. I’m using queue size as my metric for CloudWatch,  which is a good fit if your background workers are pulling messages from a queue and processing them.  If the queue is getting too big, the “high” alarm will fire and spin up a new instance to share the workload. If the queue is draining down, the “low” alarm will fire and shut down one of the instances. To start with, you need to manually set up your app in an EC2 VM, for a background worker that would mean hosting your code in a Windows Service (I always use Topshelf). If you’re dual-running Azure and AWS, then you can isolate your logic in one library, with a generic entry point that has Start() and Stop()  functions, so your Worker Role and Windows Service are essentially using the same code. When you have your instance set up with the Windows Service running automatically, and you’ve tested it starts up and works properly from a reboot, shut the machine down and take an image of the VM, using Create Image (EBS AMI) from the Web Console: When that completes, you’ll have your own AMI which you can use to spin up new instances, and you’re ready to create your auto-scaling group. You need to dip into the command-line tools for this, so follow this guide to set up the AWS autoscale command line tool. Now we’re ready to go. 1. Create a launch configuration This launch configuration tells AWS what to do when a new instance needs to be spun up. You create it with the as-create-launch-config command, which looks like this: as-create-launch-config sc-xyz-launcher # name of the launch config --image-id ami-7b9e9f12 # id of the AMI you extracted from your VM --region eu-west-1 # which region the new instance gets created in --instance-type t1.micro # size of the instance to create --group quicklaunch-1 #security group for the new instance 2. Create an auto-scaling group The auto-scaling group links to the launch config, and defines the overall configuration of the collection of instances: as-create-auto-scaling-group sc-xyz-asg # auto-scaling group name --region eu-west-1 # region to create in --launch-configuration sc-xyz-launcher # name of the launch config to invoke for new instances --min-size 1 # minimum number of nodes in the group --max-size 5 # maximum number of nodes in the group --default-cooldown 300 # period to wait (in seconds) after each scaling event, before checking if another scaling event is required --availability-zones eu-west-1a eu-west-1b eu-west-1c # which availability zones you want your instances to be allocated in – multiple entries means EC@ will use any of them 3. Create a scale-up policy The policy dictates what will happen in response to a scaling event being triggered from a “high” alarm being breached. It links to the auto-scaling group; this sample results in one additional node being spun up: as-put-scaling-policy scale-up-policy # policy name -g sc-psod-woker-asg # auto-scaling group the policy works with --adjustment 1 # size of the adjustment --region eu-west-1 # region --type ChangeInCapacity # type of adjustment, this specifies a fixed number of nodes, but you can use PercentChangeInCapacity to make an adjustment relative to the current number of nodes, e.g. increasing by 50% 4. Create a scale-down policy The policy dictates what will happen in response to a scaling event being triggered from a “low” alarm being breached. It links to the auto-scaling group; this sample results in one node from the group being taken offline: as-put-scaling-policy scale-down-policy -g sc-psod-woker-asg "--adjustment=-1" # in Windows, use double-quotes to surround a negative adjustment value –-type ChangeInCapacity --region eu-west-1 5. Create a “high” CloudWatch alarm We’re done with the command line now. In the Web Console, open up the CloudWatch view and create a new alarm. This alarm will monitor your metrics and invoke the scale-up policy from your auto-scaling group, when the group is working too hard. Configure your metric – this example will fire the alarm if there are more than 10 messages in my queue for over a minute: Then link the alarm to the scale-up policy in your group: 6. Create a “low” CloudWatch alarm The opposite of step 4, this alarm will trigger when the instances in your group don’t have enough work to do (e.g fewer than 2 messages in the queue for 1 minute), and will invoke the scale-down policy. And that’s it. You don’t need your original VM as the auto-scale group has a minimum number of nodes connected. You can test out the scaling by flexing your CloudWatch metric – in this example, filling up a queue from a  stub publisher – and watching AWS create new nodes as required, then stopping the publisher and watch AWS kill off the spare nodes.

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• Surface development: Translate/Rotate/Scale items without ScatterView

  - by Maarten

  Hi, Is it possible to transalte/rotate/scale items without a ScatterView? I want to manipulate items which can be on top of other elements like a button, list or a custom control which should be static . When I add them to a ScatterView, they all become ScatterViewItems which is not the desired effect. Thx! Maarten

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• Class for move, scale and rotate, of a uiimageview

  - by David

  Hi Everyone, I'm creating a subclass of UIImageView that detects touches, and will move, rotate and scale the image based on the touches. However, I really feel like I'm reinventing the wheel here, and it's driving me nuts. Shouldn't this already exist somewhere? Does anyone have any examples, or links to a class that is already doing this? Or if you have a class you've written, that'd be helpful too. Thanks a lot in advance.

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• Scale a .jpg file in WPF

  - by James Cadd

  I'd like to open a .jpg file in WPF, scale it down to around 50%, then save it back to the file system. What's a good/efficient way to go about doing that?

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• Determine precision and scale of particular number in Python

  - by jrdioko

  I have a variable in Python containing a floating point number (e.g. num = 24654.123), and I'd like to determine the number's precision and scale values (in the Oracle sense), so 123.45678 should give me (8,5), 12.76 should give me (4,2), etc. I was first thinking about using the string representation (via str or repr), but those fail for large numbers: >>> num = 1234567890.0987654321 >>> str(num) = 1234567890.1 >>> repr(num) = 1234567890.0987654

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• Flex 4: Scale to a point (zoom into an image where the mouse was clicked)

  - by Jason W

  I've been trying to get this working and I can't seem to figure it out. There is an Image control that when I click on it I need to zoom in (using the center/transform point where the mouse is clicked). I have the zoom transition working great, but when I set transformX & tranformY (with autoCenterTransform false) it doesn't zoom into that point. Here is my code that only zooms in (not to a specific point) <fx:Script> <![CDATA[ protected function imgLogo_clickHandler(event:MouseEvent):void { transformer.play(); } ]]> </fx:Script> <fx:Declarations> <s:Parallel id="transformer" target="{imgLogo}"> <s:Scale scaleXBy="0.5" scaleYBy="0.5" /> </s:Parallel> </fx:Declarations> <mx:Image id="imgLogo" width="250" x="100" y="100" maintainAspectRatio="true" source="@Embed('src/logo.png')" click="imgLogo_clickHandler(event)" /> Any help is greatly appreciated. Thanks

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• Zooming in isometric engine using XNA

  - by Yheeky

  I´m currently working on an isometric game engine and right now I´m looking for help concerning my zoom function. On my tilemap there are several objects, some of them are selectable. When a house (texture size 128 x 256) is placed on the map I create an array containing all pixels (= 32768 pixels). Therefore each pixel has an alpha value I check if the value is bigger than 200 so it seems to be a pixel which belongs to the building. So if the mouse cursor is on this pixel the building will be selected - PixelCollision. Now I´ve already implemented my zooming function which works quite well. I use a scale variable which will change my calculation on drawing all map items. What I´m looking for right now is a precise way to find out if a zoomed out/in house is selected. My formula works for values like 0,5 (zoomed out) or 2 (zoomed in) but not for in between. Here is the code I use for the pixel index: var pixelIndex = (int)(((yPos / (Scale * Scale)) * width) + (xPos / Scale) + 1); Example: Let´s assume my mouse is over pixel coordinate 38/222 on the original house texture. Using the code above we get the following pixel index. var pixelIndex = ((222 / (1 * 1)) * 128) + (38 / 1) + 1; = (222 * 128) + 39 = 28416 + 39 = 28455 If we now zoom out to scale 0,5, the texture size will change to 64 x 128 and the amount of pixels will decrease from 32768 to 8192. Of course also our mouse point changes by the scale to 19/111. The formula makes it easy to calculate the original pixelIndex using our new coordinates: var pixelIndex = ((111 / (0.5 * 0.5)) * 64) + (19 / 0.5) + 1; = (444 * 64) + 39 = 28416 + 39 = 28455 But now comes the problem. If I zoom out just to scale 0.75 it does not work any more. The pixel amount changes from 32768 to 18432 pixels since texture size is 96 x 192. Mouse point is transformed to point 28/166. The formula gives me a wrong pixelIndex. var pixelIndex = ((166 / (0.75 * 0.75)) * 96) + (28 / 0.75) + 1; = (295.11 * 96) + 38.33 = 28330.66 + 38.33 = 28369 Does anyone have a clue what´s wrong in my code? Must be the first part (28330.66) which causes the calculation problem. Thanks! Yheeky

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• scale animation for wpf popup

  - by wpf

  I have a nice little popup, when it shows, I d'like it to growth from 0 to 1x scaley, but I don't get it right, when I click multiple times, it looks like i "catch" the animation at various states during the "growth". <Window.Triggers> <EventTrigger RoutedEvent="FrameworkElement.MouseRightButtonDown" > <EventTrigger.Actions> <BeginStoryboard> <Storyboard> <DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="SimplePopup" Storyboard.TargetProperty="(FrameworkElement.LayoutTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleY)"> <SplineDoubleKeyFrame KeyTime="00:00:00" Value="0"/> <SplineDoubleKeyFrame KeyTime="00:00:00.3000000" Value="1"/> </DoubleAnimationUsingKeyFrames> </Storyboard> </BeginStoryboard> </EventTrigger.Actions> </EventTrigger> </Window.Triggers> and the popup: <Popup Name="SimplePopup" AllowsTransparency="True" StaysOpen="False"> <Popup.LayoutTransform> <TransformGroup> <ScaleTransform ScaleX="1" ScaleY="1" /> <SkewTransform AngleX="0" AngleY="0" /> <RotateTransform Angle="0" /> <TranslateTransform X="0" Y="0" /> </TransformGroup> </Popup.LayoutTransform> <Border> some Content here </Border> </Popup>

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• Plane projection and scale causing bluring in silverlight

  - by Andy

  Ok, So I've tried to make an application which relies on images being scaled by an individual factor. These images are then able to be turned over, but the use of an animation working on the ProjectionPlane rotation. The problem comes around when an image is both scaled and rotated. For some reason it starts bluring, where a non scaled image doesn't blur. Also, if you look at the example image below (top is scaled and rotated, bottom is rotated) the projection of the top one doesn't even seem right. Its too horizontal. This this the code for the test app: <UserControl x:Class="SilverlightApplication1.Page" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Width="400" Height="300"> <Canvas x:Name="LayoutRoot" Background="White"> <Border Canvas.Top="25" Canvas.Left="50"> <Border.RenderTransform> <TransformGroup> <ScaleTransform ScaleX="3" ScaleY="3" /> </TransformGroup> </Border.RenderTransform> <Border.Projection> <PlaneProjection RotationY="45"/> </Border.Projection> <Image Source="bw-test-pattern.jpg" Width="50" Height="40"/> </Border> <Border Canvas.Top="150" Canvas.Left="50"> <Border.RenderTransform> <TransformGroup> <ScaleTransform ScaleX="1" ScaleY="1" /> </TransformGroup> </Border.RenderTransform> <Border.Projection> <PlaneProjection RotationY="45"/> </Border.Projection> <Image Source="bw-test-pattern.jpg" Width="150" Height="120"/> </Border> </Canvas> </UserControl> So if anyone could possible shed any light on why this may be happening, I'd very much appreciate it. Suggestions also welcome! :)

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• how to 'scale' these three tables?

  - by iddqd

  I have the following Tables: Players id playerName Weapons id type otherData Weapons2Player id playersID_reference weaponsID_reference That was nice and simple. Now I need to SELECT items from the Weapons table, according to some of their characteristics that i previously just packed into the otherData column (since it was only needed on the client side). The problem is, that the types have varying characteristics - but also a lot of similar data. So I'm trying to decide on the following possibilities, all of which have their pros and cons. Solution A Kill the Weapons table, and create a new table for each Weapon-Type: Weapons_Swords id bladeType damage otherData Weapons_Guns id accuracy damage ammoType otherData But how will i Link these to the Players ? create Weapons_Swords2Players, Weapons_Guns2Players for each weapon-type? (Will result in a lot more JOINS when loading the player with all his weapons...and it's also more complicated to insert a new player) or add another column to Weapons2Players called WeaponsTypeTable, then do sub-selects to the correct Weapons sub-table (seems easier, but not really right, slightly easier insert i guess) Solution B Keep the Weapons table, and add all the fields i need to it. The Problem is that then there will be NULL fields, since not all Weapon-Types use all fields (can't be right) Weapons id type accuracy damage ammoType bladeType otherData This seems to be pretty basic stuff, but i just can't decide what's best. Or is there a correct Solution C? many thanks.

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• Scale an image every time it collide with another

  - by jean mayot

  here is my code : -(void)collision{ if(CGRectIntersectsRect(imageView.frame,centre.frame)){ imageView.alpha=0; [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:1.0f]; centre.transform=CGAffineTransformMakeScale(1.3, 1.3); [UIView commitAnimations]; } } When imageView collide with centre centre become bigger. my problem is that when "imageView" collide with "centre" a second time the animation doesn't work. I want to make centre bigger and bigger and bigger every time imageView collide with center, but it become bigger just one time . Sorry for my english I'm french :/ How can I solve this please ?

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