将图形保存为高分辨率或无损图像，可以在没有像素化的情况下放大

Question

I have a big plot in MATLAB (4095 points total) and I want to export this figure as a high res image which can be zoomed in just like the original figure can be zoomed in. Below I attached two images, one is full size plot and the second one was exported separately by zooming in the figure and then exporting. 1st image gets pixelated (obviously) when I zoom in. So my question is if it is possible to export the figure as an image (any format but .fig) that can be zoomed in for more granular detail.

Answer 1

You need to save the figure using a vector format , such as pdf , ps or eps .

For example: try

plot(sin(0:.001:2*pi)) %// example graph

The resulting figure is:

Then print to pdf :

print -dpdf example %// Or change -dpdf to -deps, -depsc, -dps, -dpsc

Now open the generated file, example.pdf . You can zoom on it and you won't see it pixelated. Here's an example of the top of the sinusoid at 6400% zoom.