如何更改Matlab颜色条缩放 [英] How do I change matlab colorbar scaling

问题描述

我很难理解如何在Matlab2015b中更改颜色条的范围.

I am having a really hard time understanding how to change the range of my colorbar in Matlab2015b.

默认情况下，它的范围是0到1.我设法使用以下方法更改了标签:

By default it will range from 0 to 1. I managed to change the label by using:

    c=colorbar;
    c.Limits=[0 180] % the range that I want

问题是当我这样做时颜色不会缩放，换句话说，它将显示从0到180，但仍使用与[0 1]关联的颜色，这会使整个条形看起来像一种颜色.

The problem is the colors don't scale when I do that, in other words it will display from 0 to 180 but still uses the colors associated to [0 1], which makes look the the whole bar like one color.

我使用了另一种方法，只需更改刻度并做以下事情:

I used another approach by just changing the ticks and doing:

colorbar('Yticks',[0:10:180]).

同样，颜色条仍与0到1相关联，因此第一个从10开始时，除0之外的所有刻度都不会出现.

Again, the colorbar is still associated to 0 to 1, so none of the ticks except 0 will appear as the first one starts at 10.

如何更改基于的数据?我尝试更改c.UserData，但是它什么也没做.

How do I change the data it is based on ? I tried changing c.UserData but it doesn't do anything.

推荐答案

从您的评论中，我了解您正在尝试做什么.

From your comment, I see what you are trying to do.

您位于设置ytick的右边，但是正如您所注意到的，这仅会更改色标上刻度线的位置，但缩放比例保持不变.而是尝试设置yticklabel:

You are on the right lines setting ytick, but as you noticed this only changes the position of the ticks on your colorbar, but the scaling stays the same. Instead, try to set yticklabel:

% Show the colorbar
c = colorbar;

% Define the desired ticks
ticks = [0:10:180];

% Sets the correct location and number of ticks
set(c, 'ytick', ticks / max(ticks));

% Set the tick labels as desired
set(c, 'yticklabel', ticks);

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