Howdy, Stranger!
We are about to switch to a new forum software. Until then we have removed the registration on this forum.
Categories
- All Categories 25.7K
- Announcements & Guidelines 13
- Common Questions 30
- Using Processing 22.1K
- Programming Questions 12.2K
- Questions about Code 6.4K
- How To... 4.2K
- Hello Processing 72
- GLSL / Shaders 292
- Library Questions 4K
- Hardware, Integration & Other Languages 2.7K
- Kinect 668
- Arduino 1K
- Raspberry PI 188
- Questions about Modes 2K
- Android Mode 1.3K
- JavaScript Mode 413
- Python Mode 205
- Questions about Tools 100
- Espanol 5
- Developing Processing 548
- Create & Announce Libraries 211
- Create & Announce Modes 19
- Create & Announce Tools 29
- Summer of Code 2018 93
- Rails Girls Summer of Code 2017 3
- Summer of Code 2017 49
- Summer of Code 2016 4
- Summer of Code 2015 40
- Summer of Code 2014 22
- p5.js 1.6K
- p5.js Programming Questions 947
- p5.js Library Questions 315
- p5.js Development Questions 31
- General 1.4K
- Events & Opportunities 288
- General Discussion 365
In this Discussion
- PhiLho September 2014
configure resolution while exporting a capture
Hello, I would like to export a capture of my animation made with processing. It is for a poster so I need a picture of 300 DPI. (dixit the printer)
the basic method saveFrame() give me a picture of 72 PPP ;
the method with the pdf library link > Single Frame from an Animation (With Screen Display) give a pdf file - which then I can export in a picture file via libreOffice - of 96 PPP
I know there is the "manual method" : multiply by three all the size of my project, export, and then reduce the picture. but I wanted to know if there is another easiest solution ?
Tagged:
Answers
DPI for a bitmap image is an abstract concept, actually. I can change this value without changing anything else in an image. An image visualization software can use this value to print out the image (using the "orignal size" setting, computed from this DPI value), but it can also scale it.
So, yes, you have to compute the size in pixels yourself, and scale your image accordingly. Don't take in account the DPI value saved by Processing.
For PDF files, when purely vectorial, the concept of DPI is even more useless...