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Creating a Colormap Scatter Plot

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[quote][i]Originally posted by Seb136[/i]
[br]Origin Ver. and Service Release (Select Help-->About Origin): 2017 b9.4.0.220
Operating System:Win10

Hi all,

I have a problem creating a scatter plot with a colormap.

[code]
Worksheet wks = Project.ActiveLayer();

DataRange dr;
	
//Creating XYY Range
dr.Add("X", wks, 0, 2, -1, 2);
dr.Add("Y", wks, 0, 4, -1, 4);
dr.Add("Y", wks, 0, 6, -1, 6);
	
GraphPage gp;
gp.Create("Origin");
GraphLayer gl = gp.Layers();
	
gl.AddPlot(dr, IDM_PLOT_INDEX_COLOR); //ID: 247 for Color mapped
[/code]

This code is my attempt to create a graph that has column 3 as X, column 5 as Y and column 7 as the reference for the color scale.
Instead it just creates a graphpage with columns 5 and 7 as a group and no plot type is selected (so it's just a blank page with axes).

The LabTalk commands I used in this code work as I want them to, execpt that it creates a line plot so I have to use the update_plot_type X-Function.
[code]
Worksheet wks = Project.ActiveLayer();
	
wks.Columns(2).SetType(OKDATAOBJ_DESIGNATION_X);
	
LT_execute("wks.ColSel(3,1)");
LT_execute("wks.ColSel(5,1)");
LT_execute("wks.ColSel(7,1)");
LT_execute("Worksheet -p 247");

//use x-function to change plot type to scatter
GraphLayer gl = Project.ActiveLayer();
DataPlot dp = gl.DataPlots(0);
update_plot_type(dp, IDM_PLOT_SCATTER);
[/code]

Can someone tell me why my OC-code doesn't work as it's supposed to but instead creates a grouped plot?

Thanks a lot 
Seb
[/quote]

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T O P I C R E V I E W
Seb136	Posted - 09/18/2018 : 07:48:43 AM Origin Ver. and Service Release (Select Help-->About Origin): 2017 b9.4.0.220 Operating System:Win10 Hi all, I have a problem creating a scatter plot with a colormap. Worksheet wks = Project.ActiveLayer(); DataRange dr; //Creating XYY Range dr.Add("X", wks, 0, 2, -1, 2); dr.Add("Y", wks, 0, 4, -1, 4); dr.Add("Y", wks, 0, 6, -1, 6); GraphPage gp; gp.Create("Origin"); GraphLayer gl = gp.Layers(); gl.AddPlot(dr, IDM_PLOT_INDEX_COLOR); //ID: 247 for Color mapped This code is my attempt to create a graph that has column 3 as X, column 5 as Y and column 7 as the reference for the color scale. Instead it just creates a graphpage with columns 5 and 7 as a group and no plot type is selected (so it's just a blank page with axes). The LabTalk commands I used in this code work as I want them to, execpt that it creates a line plot so I have to use the update_plot_type X-Function. Worksheet wks = Project.ActiveLayer(); wks.Columns(2).SetType(OKDATAOBJ_DESIGNATION_X); LT_execute("wks.ColSel(3,1)"); LT_execute("wks.ColSel(5,1)"); LT_execute("wks.ColSel(7,1)"); LT_execute("Worksheet -p 247"); //use x-function to change plot type to scatter GraphLayer gl = Project.ActiveLayer(); DataPlot dp = gl.DataPlots(0); update_plot_type(dp, IDM_PLOT_SCATTER); Can someone tell me why my OC-code doesn't work as it's supposed to but instead creates a grouped plot? Thanks a lot Seb
2 L A T E S T R E P L I E S (Newest First)
Seb136	Posted - 09/19/2018 : 03:26:26 AM Hi Yuki, thank you very much it works perfectly fine!
yuki_wu	Posted - 09/19/2018 : 01:34:22 AM Hi Seb, It seems that IDM_PLOT_INDEX_COLOR only works in LabTalk, but you could try method DataPlot::SetModifier https://www.originlab.com/doc/OriginC/ref/DataPlot-SetModifier void test_plot_scatter_3() { Worksheet wks = Project.ActiveLayer(); DataRange dr; //Creating XYY Range dr.Add(wks, 0, "X"); dr.Add(wks, 1, "Y"); GraphPage gp; gp.Create("Origin"); GraphLayer gl = gp.Layers(); gl.AddPlot(dr, IDM_PLOT_SCATTER); DataPlot dp = gl.DataPlots(0); if( !dp ) return; Column col(wks, 2); dp.SetModifier(COLDESIG_COLOR, col); gl.Rescale(); } Hope it helps. Regards, Yuki OriginLab

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