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  • Matplotlib, plotting discreet values

    - by Arkapravo
    I am trying to plot the following ! from numpy import * from pylab import * import random for x in range(1,500): y = random.randint(1,25000) print(x,y) plot(x,y) show() However, I keep getting a blank graph (?). Just to make sure that the program logic is correct I added the code print(x,y), just the confirm that (x,y) pairs are being generated. (x,y) pairs are being generated, but there is no plot, I keep getting a blank graph. Any help ?

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  • JIT: How to specify source/sink for arcs?

    - by Rosarch
    I'm using JIT to render graphs. I'm using the RGraph feature. This JSON defines a graph: var json = [ { 'id': '1', 'name': 'CS 2110', 'adjacencies': ['0', '2'] }, { 'id': '1.5', 'name': 'INFO 2300', 'adjacencies': ['1'] }, { 'id': '0', 'name': 'CS 1110', 'adjacencies': ['1'] }, { 'id': '2', 'name': 'INFO 3300', 'adjacencies': ['1'] }, ] If I want a directed graph, how can I specify which nodes are sources and which are sinks?

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  • Javascript InfoVis Toolkit: How to specify source/sink for arcs?

    - by Rosarch
    I'm using JIT to render graphs. I'm using the RGraph feature. This JSON defines a graph: var json = [ { 'id': '1', 'name': 'CS 2110', 'adjacencies': ['0', '2'] }, { 'id': '1.5', 'name': 'INFO 2300', 'adjacencies': ['1'] }, { 'id': '0', 'name': 'CS 1110', 'adjacencies': ['1'] }, { 'id': '2', 'name': 'INFO 3300', 'adjacencies': ['1'] }, ] If I want a directed graph, how can I specify which nodes are sources and which are sinks?

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  • How do you solve the 15-puzzle with A-Star or Dijkstra's Algorithm?

    - by Sean
    I've read in one of my AI books that popular algorithms (A-Star, Dijkstra) for path-finding in simulation or games is also used to solve the well-known "15-puzzle". Can anyone give me some pointers on how I would reduce the 15-puzzle to a graph of nodes and edges so that I could apply one of these algorithms? If I were to treat each node in the graph as a game state then wouldn't that tree become quite large? Or is that just the way to do it?

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  • SQL Server 2008 Spatial Clustering

    - by illvm
    I am trying to group points of geospatial data based on density and relative distance. Is there a way that this can be done in SQL Server 2008 using the spatial features or would it be better to translate the data into graph data and use a graph clustering algorithm?

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  • Boost BGL thread safety

    - by Budzoli
    Hi! I'd like multiple threads to use the dijkstra_shortest_paths and astar_search functions of the BGL, and then read the property maps of the result vertices and edges. I'm wondering wether I should use mutexes to ensure thread-safety. So here are my questions: 1., Are the dijkstra_shortest_paths and astar_search functions of the Boost.Graph thread safe? 2., If I only try to read the property maps of the graph from multiple threads, do I need to worry about thread safety?

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  • Contour graphs in JS or PHP ?

    - by vince83000
    Hi everybody, For a web application, I have to make a scientific graph. You can see an example here : http://www.ego-network.org/monitoring/plot_deployment.php?glider=eudoxus&deployment=Cascade&posti=4&postj=scaptemperature_lastweek&pposti=4&ppostj=scaoxygen_lastweek&hchk=&defsct=default_scatter I have 2 coordinates, time and depth, and I want the temperature to be represent by a color, exactly like the example. Someone know how to make this king of graph ? Thanks !

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  • Methods for implementing and using graphs of nodes in C++?

    - by DistortedLojik
    I am working on a research project that deals with social networks. I have done most of the backbone of the program in C++ and am now wanting to implement a way to create the graph of nodes and the connections as well as a way to visualize the connections between people. I have looked a little into Lemon and the Boost graph library, but was wondering which one would be easier to learn and implement or if I should just code my own.

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  • Unexpected error when attempting to delete a facebook story

    - by blueberryfields
    I'm attempting to delete a facebook story/action, like so: curl -F 'access_token=[valid_token]' -X DELETE https://graph.facebook.com/[action_id] Facebook is responding with an internal server error, like so: {"error": {"message":"An unexpected error has occurred. Please retry your request later.", "type":"OAuthException","code":2}} Is this an error caused by my actions, or something on Facebook's end? Additional info When I run curl -X GET https://graph.facebook.com/[action_id]?access_token=[valid_token] the result is "false"

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  • How can I convert connection data lines to block of schemes using Perl?

    - by YoDar
    I'm looking for a way to convert signals connections to a simple scheme or graph. Let's say I have 2 components with 2 line/signals around them: component A: input - S1 output - S2 component B: input - S2 output - S1 This will be the input data file, and the output will be a scheme that shows it as 2 blocks with connecting lines around them or a illustration graph. I'm wondering if an implementation of that exists in Perl's world.

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  • Safari Extjs grid rendering issue

    - by Natkeeran
    Hello: Here is a simple illustration of what I mean. It works in IE, and FF, but not in Safari. I have four panels which are dynamically added to a tabpanel item. Three are grid panels, and one is a form panel. I need to preserve the grids proportions or sizes. I tried several layout methods (table, column, absolute etc), and nothing seems work so far. For table layout, all sizes end up being the same width. It seems my best bet is column layout, and they seem to render properly in FF, IE, but not in Safari as shown in the image. (Here it seems that column goes to second row, when the item does not fit into the current row). Initially, the title bar, and several of the column headings does not show. Any suggestions. Thank you.

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  • how to set custom title bar TextView Value dynamically in android?

    - by UMMA
    friends, i have created custom title bar using following titlebar.xml file with code <?xml version="1.0" encoding="utf-8"?> <TextView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/myTitle" android:text="This is my new title" android:layout_width="fill_parent" android:layout_height="fill_parent" android:textColor="@color/titletextcolor" android:layout_marginLeft="25px" android:paddingTop="3px" /> and java code to display custom title bar on each activity. @Override public void onCreate(Bundle savedInstanceState) { requestWindowFeature(Window.FEATURE_CUSTOM_TITLE); getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.mytitle); super.onCreate(savedInstanceState); setContentView(R.layout.main); } now i want to set textview value dynamically in each activity can any one guide me how can i achieve this? using findviewbyid here i dont get reference of that textview to set value because main layout does not contains any textbox with such a name but mytitle. any help would be appriciated.

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  • Loading Magento child html outside of Magento

    - by Christian Thamer
    I am loading Magento blocks outside of Magento for certain parts of my site. I can do this successfully with something similar the following. require_once $docRoot.'/app/Mage.php'; umask(0); Mage::app('default'); ... $layout = Mage::getSingleton('core/layout'); $block = $layout->createBlock('Mage_Page_Block_Html_Header'); $block->setTemplate('page/html/header.phtml'); echo $block->renderView(); The problem is that if the block I am rending has child blocks(html) they are not included in the output. In the example above the file header.phtml contains the following call for child html that is missing from the output. ... <?php echo $this->getChildHtml('topLinks') ?> ...

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  • LinearLayout of a WebView and a Button.

    - by Timmmm
    Hi, I recently struggled with an apparently simple Android layout: I wanted a WebView above a Button. It worked fine with the following parameters: WebView: Height: wrap-content Weight: unset (by the way, what is the default?) Button: Height: wrap-content Weight: unset However if the web page became too big it spilled out over the button. I tried various combinations of weights and heights, and all except one either completely hide the button, or partially cover it. This is the one that works (copied from http://code.google.com/p/apps-for-android/source/browse/trunk/Samples/WebViewDemo/res/layout/main.xml): WebView: Height: 0 Weight: 1 Button: Height: wrap-content Weight: unset If you change any of those, e.g. give button a weight or change the WebView height to wrap-content then it doesn't work. My question is: Why? Can someone please explain what on Earth the android layout system is thinking?

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  • What is the best approach towards styling GWT applications?

    - by Ashwin
    General approach in GWT is to use Panels and then apply custom CSS themes to get a customized look. While I can achieve a certain extent of personalization of my GWT app through CSS tinkering, I was wondering how others generally approach styling. Some of the suggestions I came across the web were to manage layout with plain HTML, through use of HTMLPanel's. This way one can straightaway use the HTML mock-up within the application without having to code all the layout. So what in your opinion is the best and least painful way to approach layout and custom styling of GWT application?

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  • Dynamic Windows Forms Components (Performance problem)

    - by Svisstack
    I have a problem with performance of my code under Windows Forms. Have a form, her layout is depending on constructor data, because he layout must be OnLoad or in Constructor generated. I generation is simple, base FlowLayoutPanel have other FlowLayoutPanels, for each have a Label and TextBox with DataBinding. Problem is this is VERY SLOW, up to 20 seconds, i drawing less than 100 controls, from Performace Session i know a problem is on 70% procesing functions: System.Windows.Forms.Control.ControlCollection.Add(class System.Windows.Forms.Control) System.Windows.Forms.ControlBindingsCollection.Add(class System.Windows.Forms.Binding) How i can do with this? Anyone help me in this problem? How solve the dynamic form layout problem?

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  • How to achieve table like rows within container using CSS

    - by Barry
    I'm helping an artist maintain her website and have inherited some pretty outdated code. Have moved lots of redundant common code to include files and am now working on moving from inline styles to more CSS-driven styles. For the gallery pages, e.g. http://artistsatlaketahoe.com/abstract.html, a lot of inline styling is used to force the current layout. My preference would be to replace this entirely with CSS that presents the following table-like layout within the "content" div: [image] [image descriptives and purchase button] [image] [image descriptives and purchase button] [image] [image descriptives and purchase button] I'd like to middle-align the image descriptives & purchase button relative to the image if possible. And then apply some padding above and below each row to stop using tags for vertical spacing. Any ideas how to create a div that I can use to get this kind of layout? Thanks!

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  • How can I vertically center an element with GWT?

    - by Camille
    Perhaps I haven't been searching the right way but I cannot figure out for the life of me how to center an element using GWT Layout Panels. I'm using UiBinder and I've tried all panels that implement HasVerticalAlignment (DockPanel, HorizontalPanel, VerticalPanel). None of them seem to have any impact from setting vertical alignment (or even horizontal). I've made sure they're taking 100% width and height, inspected the resulting DOM layout from my browser and nothing seems to be changed from those properties. The quick and dirty fix I've figured out is to create my own "CenterPanel" widget which basically is a wrapper around a HTMLPanel with a HTML table with a valign="middle" cell. However, this basically feels like a throwback to the classical css-layout middle centering problems. Surely GWT has something to do this that I've completely overlooked?

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  • Control margins of an automatically generated content presenter in Windows Phone Panorama Control

    - by Maxim V. Pavlov
    I am building an MVVM Panorama Windows Phone 7 application. At some point of Panorama Item's layout I get a bottom margin of a panorama header box, that moves my content too far down. Is there a way I can set a bottom margin of a ContentPresenter, that is generated to hold the controls, defined in the Panorama.HeaderTemplate? Here is my layout list in Silverlight Spy: In case the screen shot is not readable, here is a large version: http://bit.ly/rBvNp8 Something generates a 26 points bottom margin for a header box (probably the control's code, that handles a layout). How can I control this value? I need it to be set to 0.

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  • Buttons with equal heights.

    - by Rpond
    Linear layout below. This layout is aligned parent bottom in a Relative Layout. Problem is I want all buttons to have the same height. I have tried layout_gravity="fill" but that doesn't seem to work. <LinearLayout android:id="@+id/button_layout" android:layout_height="wrap_content" android:layout_width="fill_parent" android:background="#FFFFFF" android:layout_alignParentBottom="true"> <Button android:text="Send" android:id="@+id/send_button" android:layout_weight="1" android:layout_gravity="fill" android:layout_width="0dip" android:layout_height="wrap_content"> </Button> <Button android:text="Report Missing Image" android:id="@+id/report_button" android:layout_weight="1" android:layout_width="0dip" android:layout_height="wrap_content"> </Button> <Button android:text="Close" android:id="@+id/close_button" android:layout_weight="1" android:layout_gravity="fill" android:layout_width="0dip" android:layout_height="wrap_content"> </Button> </LinearLayout>

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  • TextView would not horizontally center

    - by theGreenCabbage
    My layout is the following: <TextView android:id="@+id/display_city" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_above="@+id/pollenType" android:layout_alignParentBottom="true" android:layout_alignParentRight="true" android:layout_below="@+id/get_pollen_index" android:layout_centerHorizontal="true" android:layout_centerVertical="true" android:layout_marginTop="51dp" android:textSize="40sp" /> As you can tell, Philadelphia, PA is left-aligned. No matter what I change, whether it's centering horizontal and vertical to true, it stays left-aligned. I have tried changing the layout via the XML and graphical user interface. In the graphical user interface, it indeed is "centered", but it remains non-centered. My layout positions are consistent across all my textviews, so I am unsure as to why this particular TextView is not centered.

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  • C# Dynamic From Components (Performance problem)

    - by Svisstack
    Hello, I have a problem with performance of my code under Windows Forms. Have a form, her layout is depending on constructor data, because he layout must be OnLoad or in Constructor generated. I generation is simple, base FlowLayoutPanel have other FlowLayoutPanels, for each have a Label and TextBox with DataBinding. Problem is this is VERY SLOW, up to 20 seconds, i drawing less than 100 controls, from Performace Session i know a problem is on 70% procesing functions: System.Windows.Forms.Control.ControlCollection.Add(class System.Windows.Forms.Control) System.Windows.Forms.ControlBindingsCollection.Add(class System.Windows.Forms.Binding) How i can do with this? Anyone help me in this problem? How solve the dynamic form layout problem?

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  • android localization: Is it a good practice to have only needed resource to put in localized folder?

    - by MobileDev123
    Hi, My application has 4 languages in it. However only one module needs to be localized out of 5, This module has 4 layout files and some images, remaining files can be there in default layout folder and drawable folders. My question is : is it good practice to put only needed files in localization folders, if I leave other files in its respective folders and don't copy them in translation folders, does my application throw NullPointerException when my application runs in other language? and Does android market have any size limit? (Also being a BB developer,AFAIK they do not allow OTA, if the application size grows more than 3 mb) [In case i need to copy the layout and image files]. Note about NullPointerException : it throws in string if you omit some string in localization and application runs in that particular locale. Thanks

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  • graph with database

    - by Flip_novidade
    I need to make two graphs with data coming from the database. I do not know where I am going wrong. If someone can show me the correct way, or provide any examples. must be two graphs, a graph of a specific student another graph of all students thank you public class NotasBean { private Notas notas; private Notas selectedNotas; private List<Notas> filtroNotass; public Notas getNotas() { return notas; } public void setNotas(Notas notas) { this.notas = notas; } public Notas getSelectedNotas() { return selectedNotas; } public void setSelectedNotas(Notas selectedNotas) { this.selectedNotas = selectedNotas; } public List<Notas> getFiltroNotass() { return filtroNotass; } public void setFiltroNotass(List<Notas> filtroNotass) { this.filtroNotass = filtroNotass; } public void prepararAdicionarNotas(){ notas = new Notas(); } public void adicionarNotas(){ dao.NotasDao obj_dao = new dao.NotasDao(); obj_dao.save(notas); } } package dao; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.Statement; import java.util.ArrayList; import java.util.List; import javax.faces.application.FacesMessage; import javax.faces.context.FacesContext; import model.Aluno; import model.Notas; import model.Notas; public class NotasDao { private Conexao obj_conexao; public NotasDao() { obj_conexao = new Conexao(); } public List<Notas> list() { List<Notas> array_registros = new ArrayList<Notas>(); try { String sql = "Select alu_in_ra, dis_st_sigla, ald_fl_p1, ald_fl_p2, ald_fl_p3, ald_fl_trab1, ald_fl_trab2 from cad_aluno_disciplina"; Statement comando_sql = (Statement) obj_conexao.getConexao() .createStatement(); ResultSet obj_result = comando_sql.executeQuery(sql); while (obj_result.next()) { Notas obj_notas = new Notas(); obj_notas.setAlura(obj_result.getInt("alu_in_ra")); obj_notas.setDiscsigla(obj_result.getString("dis_st_sigla")); obj_notas.setP1(obj_result.getInt("ald_fl_p1")); obj_notas.setP2(obj_result.getInt("ald_fl_p2")); obj_notas.setP3(obj_result.getInt("ald_fl_p3")); obj_notas.setTrb1(obj_result.getInt("ald_fl_trab1")); obj_notas.setTrb2(obj_result.getInt("ald_fl_trab2")); array_registros.add(obj_notas); } } catch (Exception e) { System.out.println("Erro no select" + e.getMessage()); } finally { obj_conexao.fecharConexao(); } return array_registros; } public void select(Aluno obj_aluno){ FacesContext mensagem = FacesContext.getCurrentInstance(); try{ String comando_sql = "Select alu_in_ra, dis_st_sigla, ald_fl_p1, ald_fl_p2, ald_fl_p3, ald_fl_trab1, ald_fl_trab2 from cad_aluno_disciplina where alu_in_ra=?"; PreparedStatement obj_sql = (PreparedStatement) obj_conexao.getConexao().prepareStatement(comando_sql); obj_sql.setInt(1, obj_aluno.getRa()); obj_sql.executeUpdate(); mensagem.addMessage(null, new FacesMessage(FacesMessage.SEVERITY_WARN, "Erro ao selecionar aluno!","Snif")); }catch(Exception e){ mensagem.addMessage(null, new FacesMessage(FacesMessage.SEVERITY_FATAL, "Erro na inclusão: "+e.getMessage()," Ocoreu o erro: "+e.getMessage())); }finally{ obj_conexao.fecharConexao(); } return; } }//fecha a classe package model; import java.io.Serializable; public class Notas implements Serializable{ private static final long serialVersionUID = 1L; private int alura; private String discsigla; private float p1; private float p2; private float p3; private float trb1; private float trb2; public Notas() { } public Notas (int alura, String discsigla, float p1, float p2, float p3, float trb1, float trb2){ super(); this.alura=alura; this.discsigla=discsigla; this.p1=p1; this.p2=p2; this.p3=p3; this.trb1=trb1; this.trb2=trb2; } public int getAlura() { return alura; } public void setAlura(int alura) { this.alura = alura; } public String getDiscsigla() { return discsigla; } public void setDiscsigla(String discsigla) { this.discsigla = discsigla; } public float getP1() { return p1; } public void setP1(float p1) { this.p1 = p1; } public float getP2() { return p2; } public void setP2(float p2) { this.p2 = p2; } public float getP3() { return p3; } public void setP3(float p3) { this.p3 = p3; } public float getTrb1() { return trb1; } public void setTrb1(float trb1) { this.trb1 = trb1; } public float getTrb2() { return trb2; } public void setTrb2(float trb2) { this.trb2 = trb2; } } <p:panel header="Grafico Notas Aluno" style="width: 550px"> <p:lineChart id="linear" value="#{notasDao.aluno.alura}" var="notas" xfield="#{notas.alura}" height="300px" width="500px" style="chartStyle"> <p:chartSeries label="Prova 1" value="#{notas.p1}" /> <p:chartSeries label="Prova 2" value="#{notas.p2}" /> <p:chartSeries label="Prova 3" value="#{notas.p3}" /> <p:chartSeries label="Trabalho 1" value="#{notas.trb1}" /> <p:chartSeries label="Trabalho 2" value="#{notas.trb2}" /> </p:lineChart> </p:panel> <p:panel header="Grafico Notas" style="width: 550px"> <p:lineChart id="linear" value="#{notasDao.natas}" var="notas" xfield="#{notas.p1}" height="300px" width="500px" style="chartStyle"> <p:chartSeries label="Prova 1" value="#{notas.p1}" /> <p:chartSeries label="Prova 2" value="#{notas.p2}" /> <p:chartSeries label="Prova 3" value="#{notas.p3}" /> <p:chartSeries label="Trabalho 1" value="#{notas.trb1}" /> <p:chartSeries label="Trabalho 2" value="#{notas.trb2}" /> </p:lineChart> </p:panel>

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