plot with user defined marker

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peter
peter 2011-1-25
how can I generate plot with user defined marker, e.g. numeric as marker.

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Paulo Silva
Paulo Silva 2011-1-25
text(x,y,num2str(n)) %just the number n close to x y
text(x,y,strcat('\leftarrow',num2str(n))) %with arrow pointing to point
Make n equal to the numeric value you want before that code ex: n=69

更多回答（1 个）

Walter Roberson
Walter Roberson 2011-1-25
There is no way to create user-defined markers for the plotting routines.
You can use text() to place arbitrary text at arbitrary locations, or you can line() or plot() or even image() shapes at arbitrary locations.
Anything you put in to place by one of the above means will not automatically resize if you zoom the plot. In order to handle that condition, you need to create a zoom-mode object and establish a post-action callback that determines the new zoom level and removes the old markers and puts in new ones at an appropriate size for that zoom.
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Paulo Silva
Paulo Silva 2011-1-25
sorry walter, I started my answer and did some tests before you posted to make sure the code was correct :) I'm glad you posted first with more info.

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