Top "Drawing" questions

How to erase previous drawing on Canvas?

I have a background image (a map) on which I need to regularly draw the you-are-here icon. I use Canvas …

android canvas drawing

How to draw a line between draggable and droppable?

I'm using the excellent JQuery UI to do a "mapping" so the user can "map" persons from one program to …

jquery html jquery-ui drawing svg

Custom onDraw() method not called

<LinearLayout android:id="@+id/svLL" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="fill_parent"> &…

android drawing

Draw on the screen without a form

Is it possible to create a big white rectangle on the screen, without using a Forms Application? It should cover …

c# console drawing screen

How to draw a line between 2 elements using JQuery and refreshing that line?

I am using JQuery-UI draggables and droppables to clone elements onto a div. What is the best way to draw …

javascript jquery jquery-ui canvas drawing

How to draw axis in the middle of the figure?

I want to draw a figure in matplotib where the axis are displayed within the plot itself not on the …

python matplotlib drawing

iPhone smooth sketch drawing algorithm

I am working on a sketching app on the iPhone. I got it working but not pretty as seen here …

ios iphone drawing quartz-graphics

What does the python interface to opencv2.fillPoly want as input?

I'm trying to draw a polygon using the python interface to opencv, cv2. I've created an empty image, just a 640…

python opencv drawing

How to draw unfilled figures on Android?

Is it possible to draw unfilled figures on Android? By default circles and rectangles are filled.

android drawing fill

Easiest way to "draw" simple lines over an image with jQuery and save to Rails DB?

I'd like to draw lines on an image. Basically allow the user to draw a path for mountain trails they …

jquery ruby-on-rails drawing lines