IDL CONTOUR PLOT COLORBAR

Adding a Colorbar You can see many examples of plots with color bars of various sorts along with the code to create them in the Coyote Plot Gallery. We have the same problem in direct graphics. Substantially rewritten to go to screen or PostScript file without having to know much about the PostScript device or even what the current graphics device is. Most of my graphics windows are resizeable these days. If so, the cgDCBar program is available. For a vertical bar exchange the two expressions on either side of the matrix multiplier. It applies only to vertical color bars.

Email required Address never made public. My code usually looks like this,. June 29, at 7: Display the color bar in the window. July 2, at 4: If the keyword is not set, the annotation is drawn in the color specified by the!

Anything other than this is likely to show the wrong colors in the contour plot. This site uses cookies. June 29, at 8: The keyword only applies if a horizontal color bar is rendered. Any value in the data that is larger than the highest level will be shown in some unspecified color.

Substantially rewritten to go to screen or PostScript file without xolorbar to know much about the PostScript device or even what the current graphics device is. If so, the cgDCBar program is available.

Here is one way the hard way! Honestly, I think the situation is even worse than I think it is.

Now visualize the mb geopotential height surface for January 1 as a filled contour plot, using a set of custom levels based on the data plit You can see many examples of plots with color bars of various sorts along with the code to create them in the Coyote Plot Gallery.

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These are independent, so you have one or both or none of the out-of-bounds triangles.

Output Contour Plot with Colorbar

By continuing to use this website, you agree to their use. This will be slightly different depending upon whether you are outputting to PostScript or not. If the keyword is not set, the annotation is drawn in the color specified by the! The out-of-bounds colors can il set with the name of a color, and index into the current color table, or a color triple.

To finish, annotate the visualization with continental outlines, a colorbar and some reference text:. June 29, at 7: Added the ability to send output to PostScript. It is considerably easier to use the Coyote Library routine cgColorbar to create your color bars, because of its flexibility and it’s numerous features.

Output Contour Plot with Colorbar

Using cgColorbar To Produce Color Bars It is considerably easier to use the Coyote Library routine cgColorbar to create your color bars, because of its flexibility and it’s numerous features. Perhaps this is just a semantics problem. Am I missing something? Now, run the program again.

Discrete colorbar in (New) Graphics | The IDL Data Point

This is NOT the case with this function graphics contour plot or color bar. If may be you prefer a different type of discrete color bar.

Mon Dec 7 First, load some colors. Next, set up a map projection: If you like, I can send you the Coyote Graphics commands I used to produce the plot, so you can see if I am correct. You might specify its location like this:. You are commenting using your Facebook account. To finish, annotate the visualization with continental outlines, a colorbar and some reference text: You are commenting using your WordPress.

For example, instead of the cgPlotS command above, I would use the cgPlot command. Adding a Colorbar You can see many examples of plots with color bars of various sorts along with the code to create them in the Coyote Plot Gallery. Notify me of new comments via email.

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Adding a Colorbar

If you are not specifically setting the annotation color with the COLOR keywordit will probably be better NOT to set this keyword either, even if you are outputting to a color Postscript printer. Leave a Reply Cancel reply Enter your comment here My code usually looks like this.

You could do the same thing, but put the ticks outside and on top of the color bar. It is often the case that you want to limit the colkrbar bar to a handful of colors.

A vector to specify sticks values of the color bar. Suppose you wanted to add a horizontal color bar over the top of a contour plot. Fill in your details below or click an icon to log in: Email required Address never made public. This puts the labels on the right-hand side of a vertical color bar. To display a horizontal color bar above a contour plot, type: Here is how this program looks, displaying colors for the 12 months. The number of divisions to divide the bar into.

If you simply count the colors in your color bar, you will see you have 13 colors or levels, not the 14 you think you have.