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Questions tagged [draw]

A tag for questions about methods of displaying graphical data or images.

3541 questions
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issue in redo undo operation in my paintview android

MainActivity.java public class MainActivity extends Activity implements OnClickListener { private DrawingView drawView; int mColor; String savedFilePath = ""; public static ArrayList undonePaths = new ArrayList(); public static …
Harshal Kalavadiya
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How to Draw Static or Dynamic graphs like those?

I have been learning from this site for really long time, but this is actually my first appearance here, that is my first question, I am a civil Engineer and i am writing a software for the design of Retaining Walls, I need to draw figures like…
Azzam Alrandi
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C# Wpf - draw a graph in canvas based on min and max price

i am stuck finding the correct mathematical formula to set the correct y position in a canvas based on the lowest and highest price (int32) in a list of prices. I hope you can help me form a formula which will solve my problem. I have a canvas…
Avoider
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Create loading-circle

I'd like to draw a circle part by part. The circle should act as a loading-circle and should update itself after something is completed and should colorize a part of the circle. I've tried already to do that with a for-loop in the drawRect-method,…
Christian
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Why does the DrawingArea not redraw?

I have this code in vala: using Gtk; class Elecciones : GLib.Object { private Gtk.Window ventana; private Gtk.Entry partido1; private Gtk.Entry partido2; private Gtk.Entry partido3; private Gtk.DrawingArea tabla; …
Dominuskernel
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Is there a way to use Expression Blend 2012 Line Tool in Visual Studio 2012?

Is there a way to use Expression Blend 2012 Line Tool in Visual Studio 2012? The actual Line Tool in VS draws a blank rectangle.
rPulvi
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Delphi - Programming Algorithm to find next point to draw component

Good day All, I am developing a program that will resemble warehouse in a "graphical" manner. The representation is very basic and I am using: 1. TGroupBox (as parent container) 2. TPanel (as the shelves in the "warehouse" aka parent container. The…
Marius
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How to keep existing graphics on redraw

I'm pretty new to Processing. I'm trying to draw a line from the last rectangle my controlled "ball" was over, to the next rectangle it passes over. I've almost got it, but can't figure out how I should rearrange the code to make the lines last, and…
user3570818
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How call onDraw method from another method to draw dynamically?

I want to redraw a view from another method (say setProgress) in a class extending View. How can I do this. My view class is public class SpinView extends View { private Paint paint; private Context context; private Canvas canvas; …
donison24x7
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Drawing lines to connect objects in Processing

I'm doing a project that uses the ReactiVision framework and Processing for the graphical interface. Currently the code detects the fiducials, creates a square in its place and also shows the fiducial ID: Detecting fiducials There is more code that…
user3426597
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Drawing on a transparent image in OpenCV

If i draw a line or some figure on a transparent image(4 channels) with a certain colour, after i save the image, the line/figure it's white, even though i draw with a red colour and i create a transparent image or i open one from internet. I'm…
Zack Kaytranada
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How Can I correctly position the icons centered in a DBGrid?

The Column Width is: 48 The Icon Width is: 32. That's how I would like to draw: 12345678901234567890123456789012345678901234567 => 48, Column witdh --------1234567890123456789012345678901-------- => 32, Icon width …
EProgrammerNotFound
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Koch Curve Povray Code

Here is a povray code that I am trying to digest: #include "colors.inc" camera { location <4, 0, -10> look_at <4, 0, 0> } background{White} light_source { <10, 10, 5> color White} light_source { <0, 20, 0> color White}…
Mack
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How to draw a bar chart form data base, only series

I've been strugling for weeks trying desperatly to get a simple bar-chart out of a MySQL database. The data base keeps the results of a simple test with : date, first name, last name, and the number of points for each answer to the 20 questions. The…
user3495387
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Draw a line in Cocos2d

I'm a newbie in Cocos2d. I try to draw a simple line in Cocos2d: -(void)draw { [super draw]; glColor4ub(0,0,0,255); glLineWidth(2); glColor4f(1.0, 1.0, 0.5, 1); ccDrawLine(ccp(0,100), ccp(320,150)); } but that shows the…
Sunary
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