| Author |
 Topic  |
|
|
ingogermany
Germany
5 Posts |
 Posted - 01/04/2010 : 05:06:26 AM
|
Origin Ver. and Service Release (Select Help-->About Origin): 7.5 SR4
Operating System: Windows XP
A big "THANK YOU ALL" for this great Forum with good answers on nearly every problem i had, but not this one (or i am too tired to find it here):
is there a possibility, to make a colormap with an if structure? I want to give every element its own color, for example element C is black, element N (for Nitrogen) is red and so on. I have different worksheets with a changing number of columns and varying elements. The elements are the names of the columns.
At the moment, i get different colorbars with the right different colors with a theme i stored, but if i vary my elements with new ones, this does not work. I need something like a big element list with the exact colors connected.
something like this (only the structure, not code):
if columnname=C --> black bar;
where is the connection in originC to realize this, is it the tree?
Can someone give me a hint to solve this?
Thank you for your help in advance!
|
|
|
Penn
China
644 Posts |
Posted - 01/05/2010 : 05:42:52 AM
|
Hi,
Maybe it is not easy to satisfy your above requirement in Origin 7.5. However, with Origin 8 and Origin 8.1, you can access the format of the grouped plots to do it.
Please refer to this example.
Penn
OriginLab Technical Services |
Edited by - Penn on 01/05/2010 05:44:06 AM |
 |
|
|
ingogermany
Germany
5 Posts |
Posted - 01/05/2010 : 10:54:19 AM
|
Thank you for your fast answer. Since we won't upgrade the software to version 8 soon, i am still hoping for a solution for version 7.5...
the command SYSCOLOR_BLACK for example is not found from my compiler.
--> Error, Variable "SYSCOLOR_BLACK" not declared
Greetings from Greifswald |
|
|
|
ingogermany
Germany
5 Posts |
Posted - 01/05/2010 : 12:10:09 PM
|
Just found something which mike buess programmed and changed it a little. Now i can give every line a defined color, 0 for black 1 for red and so on, like in the origin color list. the important command is:
grlay.DataPlots(i-1).SetColor(i-1);
if you change it into
grlay.DataPlots(i-1).SetColor(22);
every line is now "magenta light", like the 22. place in color list.
so in all i have now the following code which works, but not if i change to IDM_PLOT_COLUMNS. Then every bar is simply black.
Worksheet wssData= Project.ActiveLayer();
GraphPage gpg;
gpg.Create();
GraphLayer grlay= gpg.Layers();
for(int i = 1; i < wssData.GetNumCols(); i++) //plot each column of data
{
Curve cv(wssData,i);
grlay.AddPlot(cv, IDM_PLOT_LINE);
//test, if string "C " is there
char *testC=strstr(nameofcolumn,"C ");
if(testC!=NULL)
{
grlay.DataPlots(i-1).SetColor(1); // plot color , now C is red
};
char *testC=strstr(nameofcolumn,"N ");
if(testC!=NULL)
{
grlay.DataPlots(i-1).SetColor(2); // plot color , now N is green
};
//and so on...
grlay.Rescale();
}
}
Perhaps you cannot change the color wit .SetColor if you use COLUMN? |
|
|
|
Penn
China
644 Posts |
Posted - 01/06/2010 : 12:59:34 AM
|
Hi Greifswald,
The example about setting grouped bars colors has been updated, now it works in Origin 7.5, and you can try again.
From the code you posted, the bar plots created are not grouped. So, you can try using the theme tree to set color. You can change your code like below:
Worksheet wssData= Project.ActiveLayer();
GraphPage gpg;
gpg.Create();
GraphLayer grlay= gpg.Layers();
for(int i = 1; i < wssData.GetNumCols(); i++) //plot each column of data
{
Curve cv(wssData,i);
//grlay.AddPlot(cv, IDM_PLOT_LINE);
grlay.AddPlot(cv, IDM_PLOT_COLUMN);
//test, if string "C " is there
char *testC=strstr(nameofcolumn,"C ");
if(testC!=NULL)
{
//grlay.DataPlots(i-1).SetColor(1); // plot color , now C is red
DataPlot dp = grlay.DataPlots(i-1); // get current data plot
Tree trFormat;
trFormat = dp.Curve; // get plot's theme tree
trFormat.Pattern.Fill.FillColor.nVal = 1; // set fill color to theme tree
dp.Curve = trFormat; // set theme tree back to data plot
};
char *testC=strstr(nameofcolumn,"N ");
if(testC!=NULL)
{
//grlay.DataPlots(i-1).SetColor(2); // plot color , now N is green
DataPlot dp = grlay.DataPlots(i-1);
Tree trFormat;
trFormat = dp.Curve;
trFormat.Pattern.Fill.FillColor.nVal = 2;
dp.Curve = trFormat;
};
//and so on...
grlay.Rescale();
}
Penn
OriginLab Technical Services |
Edited by - Penn on 01/06/2010 04:23:15 AM |
|
|
|
ingogermany
Germany
5 Posts |
Posted - 01/15/2010 : 09:59:03 AM
|
Thank you Penn and OriginLab Technical Services, i found the time to program now and solved the problem with your code! i use the following code which is yours, only light varied. call it with bar_color_map() in your code after graph is created. Greetings from the town Greifswald in Germany  , it is not my name
void bar_color_map()
{
GraphLayer gl = Project.ActiveLayer(); // get active graph layer
GroupPlot gpl = gl.Groups(0); // get first grouped plots
vector<int> vcColors;
int nPlotCount = gl.DataPlots.Count(); // get number of plots
vcColors.SetSize(nPlotCount); // set vector size
for(int i=0; i<nPlotCount; i++) // set color vector according to the column name
{
DataPlot dp = gl.DataPlots(i); // get dataplot
string strDatasetName = dp.GetDatasetName();
string strColName= strDatasetName.GetToken(1, '_');
printf("\n %s", strDatasetName.GetToken(1, '_'));
if(0 == strColName.Compare("C")) // set color value one by one
vcColors[i] = 0; // 0 = black
else if((0 == strColName.Compare("N"))||(0 == strColName.Compare("NC")))
vcColors[i] = 2; // 2 = grn
else if((0 == strColName.Compare("O"))||(0 == strColName.Compare("OC")))
vcColors[i] = 3; // 3 = blau
else if((0 == strColName.Compare("Al"))||(0 == strColName.Compare("AlC")))
vcColors[i] = 17; // 17 = weiss
else if((0 == strColName.Compare("Cl"))||(0 == strColName.Compare("Cl")))
vcColors[i] = 9; // 9 = lila
else if((0 == strColName.Compare("F"))||(0 == strColName.Compare("FC")))
vcColors[i] = 1; // 1 = rot
else if((0 == strColName.Compare("Si"))||(0 == strColName.Compare("SiC")))
vcColors[i] = 7; // 7 = dunkelgelb
else if((0 == strColName.Compare("Y"))||(0 == strColName.Compare("YC")))
vcColors[i] = 11; // 11 = oliv
else if((0 == strColName.Compare("Zr"))||(0 == strColName.Compare("ZrC")))
vcColors[i] = 10; // 10 = braun
else if((0 == strColName.Compare("Na"))||(0 == strColName.Compare("NaC")))
vcColors[i] = 4; // 4 = cyan
else
{vcColors[i] = 14; printf("bitte noch eigene Farbe zuweisen zu orangenem Element"); // 14 = orange
}
}
gpl.Increment.BackgroundColor.nVals = vcColors; // set increment colors
} |
|
|
| |
Topic |
|
|
|
colors in bargraph according to column names