openframeworks / openframeworks/openFrameworks
issue with simple line drawing
Nobody has claimed this yet.
- Dominant language
- C++
- Stars
- 10.4k
- Forks
- 2.6k
- Avg merge
- 1d 21h
- Merged PRs (30d)
- 9
Description
I’m on macOS 10.12.6 with Xcode Version 9.2 beta (9C32c) with MBP Retina display
running this simple code
ofBackground(0);
int _h = mouseX;
ofSetColor(255);
for(int i=0; i<1000; i++){
ofDrawLine(i, _h,i, _h+20);
}
produces this image where lines should have been drawn one beside the next but for some reason some are on top of each other. I have seen this in previous versions too.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the provided ofBackground, ofSetColor, and ofDrawLine snippet in openFrameworks on the reported macOS 10.12.6 and Xcode 9.2 beta environment. Inspect the resulting adjacent vertical lines and compare the rendering with the expected one-line-per-x-position output; done requires identifying and confirming the cause or documenting the supported behavior.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- computer-graphics
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100