I want to load and draw pdf files graphically using C#. I don’t need to edit them or anything, just render them at a given zoom level. The pdf libraries I have found seem to be focussed on generation. How do I do this? Thanks. Answer Google has open sourced its excellent PDF rendering engine … Read more
I am new to SVG and I am trying to draw a straight line between two points. I managed so far by using this command: <line x1=”50″ y1=”50″ x2=”150″ y2=”150″ style=”stroke:rgb(255,255,0); stroke-width:2″ stroke-dasharray=”5,3″ />” What is the simplest way to add tiny triangles or arrow heads (evenly spaced) over this line in order to indicate … Read more
I want to draw an arrow using the canvas tag, javascript. I’ve made it using the quadratic function, but I’m having problems to calculate the angle of rotation of the arrow… Anyone have a clue on this? Thank you Answer As simple as I can get it. You’ll have to prepend context.beginPath() and append context.stroke() … Read more
I am working on a sketching app on the iPhone. I got it working but not pretty as seen here And I am looking for any suggestion to smooth the drawing Basically, what I did is when user places a finger on the screen I called – (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event then I collect a … Read more
Can anyone guide how to generate image from input text. Image might have any extension doesn’t matter. Answer Ok, assuming you want to draw a string on an image in C#, you are going to need to use the System.Drawing namespace here: private Image DrawText(String text, Font font, Color textColor, Color backColor) { //first, create … Read more
Is it possible to draw unfilled figures on Android? By default circles and rectangles are filled. Answer You need to change the Paint style to stroke if you just want an outline with no fill: Paint p = new Paint(); p.setStyle(Paint.Style.STROKE); AttributionSource : Link , Question Author : Suzan Cioc , Answer Author : K-ballo
I have following problem. I want to make some graphics in c# windows form. I want to read bitmap to my program and after it write some text on this bitmap. In the end I want this picture load to pictureBox. And it’s my question. How can I do it? example, how must it work: … Read more
I have a program that is essentially like a paint application. However, my program has some flickering issues. I have the following line in my code (which should get rid of flickering – but doesn’t): this.SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.DoubleBuffer, true); my code(minus the super and sub classes for the shapes is as follows: using … Read more
How to draw the tick symbol using CSS? The symbols I find using Unicode isn’t aesthetically-pleasing. EDIT Icon fonts are a great suggestion. I was looking for something like this. Answer You can draw two rectangles and place them next to each other. And then rotate by 45 degrees. Modify the width/height/top/left parameters for any … Read more
I was playing around with drawing paths, and I noticed that in at least some cases, UIBezierPath outperforms what I thought would be a Core Graphics equivalent. The -drawRect: method below creates two paths: one UIBezierPath, and one CGPath. The paths are identical except for their locations, but stroking the CGPath takes roughly twice as … Read more
