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Originally posted by snowli

Hello,

You can use axis reference line to do this
https://www.originlab.com/doc/Origin-Help/AxesRef-RefLines

There is Details button to customize each reference line. Fill to which position. Uncheck Auto Format, u can customize fill color, transparency, of each range, etc.

The filled color is behind plot by default so it will not block data.

Thanks, Snow

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Originally posted by snowli

Where do u want to show the labels? In the middle of each filled area like the 1st image?

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Originally posted by snowli

I am not sure if i understand your 2nd question of how to alternate colors.
There is Alternate fill checkbox on Reference Lines tab. If u check it, it will fill every other region.
There is also checkbox below Alternate Fill to include the beginning and end of axis.

To customize the color, u need to click Details.
Ctrl+ select very other row and then set Fill color to change fill color together.
Or click one row and set fill color of it. It shows where it fills to.

Thanks, Snow

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Originally posted by snowli

For now when using reference line, it seems u must do it one by one.

I added ORG-24035 to make it easy to create such filled area by each x from and to range, like your worksheet organization.

For now, u can also consider using method 1 of
https://www.originlab.com/doc/Quick-Help/Add-RecessionBars

U will need to create Y value column as well.
Then on pattern tab of Plot Details dialog, u can set fill color to be incremental. And set the color list.

Thanks, Snow

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Originally posted by snowli

Hi Andrey,

See https://www.originlab.com/doc/LabTalk/ref/Layer-Axis-Refline-obj

Thanks, Snow

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Originally posted by snowli

Hi Andrey,

Thank you for pushing this. I created ORG-24039 to provide a way to pick color from user-defined color list or palette using color() function.
That function already support many forms but not possible to pick color from a color list or palette yet.

For now, you may need to use color() function to specify RGB or HTML color for each fill color.

Thanks, Snow

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Originally posted by snowli

In any color controls where u can see By Point or By Plot tab, u can load different color list.
Then mousing over the color in the color list will show tooltip of the HTML color and RGB values.
U can also Ctr+ double click the color list to see the whole color list and its HTML color or RGB values.

Or u can choose Tools: Color Manager.. to see them.
For built-in color list or palette, u need to first right click to duplcate it first. Then double click the color bar to see Edit color dialog with all values listed.

Thanks, Snow

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Originally posted by snowli

Hi Andrey,

Several improvements are made in beta3 regarding to this post. Could you give it a try?

1. fill color under selected range of a curve

Suppose your data is organized as you said, the column with x start and end needs to be set as X. U can use any column as Y to plot it against the range X column into existing graph as line plot.
Double click the graph and pick the newly added plot. On Line tab, check enable under Fill Area under Curve
Span Vertically Pairwise is added in the dropdown list. U can choose it and then go to Pattern tab to set Fill color as Increment from and pick a start color. U can then click the pencil button next to the color list to edit the colors.
U can go to Labels tab to set the label to be from the Range ID column.
Thanks, Snow

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Originally posted by snowli
2. color() function improvements to pick color from built-in or user-defined color list or palette
E.g.
Color("candy1.oth", 1) will pick 1st color in Candy1 color list. It will first search uff folder than system folder for the file name

Color("BlueOrange2.pal", 1) will pick 1st color in BlueOrange2.pal palette file. It will first search uff folder than system folder for the file name

use Set %c -c color("candy.oth", 2) to set plot color to 2nd color of Candy color list.

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Set %c -c color("candy.oth", 2)

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Originally posted by snowli
Sorry that I may have missed your last question about saving color as text file. I suppose u can use our Color Editor app to load palette and color list. It will have R, G, B, HTML color columns created. U can export selected columns as ascii file.

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Originally posted by snowli

Hi Andrey,

See the attached opju.

https://my.originlab.com/ftp/forum_and_kbase/Images/recession_bar_sample.zip

%C means current plot.

Thanks, Snow

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Originally posted by snowli

Hi Andrey,

This only supports alternating filling.

Do you mean u want to control the colors between each zones?
Is setting layer background color good enough?

You may want to use reference lines of axis.

Thanks, Snow

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