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 Configure all font sizes for a graph layer		  New Topic  Reply to Topic
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fhtw

Germany
Posts
Posted - 09/21/2005 :  7:50:13 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Version (Select Help-->About Origin): 7.5G SR5
Operating System: Windows XP

Hi all,

is there any elegant way to configure all font sizes, i.e. all axes labels and the legend, of a GraphLayer? The manual is a bit rare about ... I am looking for something like GraphLayer.SetFontSize(n).

I have tried to realise it via a template and the <GraphPage>.Create(<template>) method, but it seems that the font size is not saved/not used in a new graph.

thanks
matthias

easwar

USA
1965 Posts
Posted - 09/22/2005 :  10:26:42 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi Matthias,

The easiest would be to
1> manually create a theme that sets font size and save the theme
2> then programmatically apply the theme to your graph

In the Programming help files, if you search with the word "theme", you will find topics relevant to this, and examples such as this one that applies one of the system themes to a graph page.


		void Run_ApplyFormat()
		{
			Page pg = Project.Pages();
			pg.ApplyFormat("themes\\Ticks All In.OTH");
		}



When creating a theme, you should keep in mind to make the theme as minimal in size as possible so that only the properties that you want to change are saved.

Note that a theme can be loaded into a tree and changed before applying, so that if you save a theme with font size set to say 22, later you could load it, change the size specification to 24, and then apply to page.

Other than using a theme, one would have to point to each text object in the graph and change its font property. Axis titles etc need to be accessed in a different way than other text labels and so may need quite a few lines of code to do this.

Easwar
OriginLab
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easwar

USA
1965 Posts
Posted - 09/22/2005 :  12:01:17 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi Matthias,

I thought about it some more and if you are only concerned with axis labels and legend for say one layer, could be quicker to just set them individually rather than use theme, with code such as below.

Theme could be a better option if you have many layers and many other proerties to set.

Easwar
OriginLab



void change_each_font()
{
	// Point to active graph layer
	GraphLayer gly = Project.ActiveLayer();
	
	GraphObject gobj;
	// Point to X axis label object which has name XB, and change its font
	gobj = gly.GraphObjects("XB");
	gobj.Label.Font.Size.nVal = 30;
	// Point to Y axis label object which has name YL, and change its font
	gobj = gly.GraphObjects("YL");
	gobj.Label.Font.Size.nVal = 30;
	// Point to Legend label object which has name Legend, and change its font
	gobj = gly.GraphObjects("Legend");
	gobj.Label.Font.Size.nVal = 30;
	
	// Can see what properties exist by loading into tree and dumping to script window
	Tree tr;
	tr = gobj.Label;
	out_tree(tr);
}
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fhtw

Germany
Posts
Posted - 09/23/2005 :  07:12:54 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi easwar,

thanks for your reply! I will use the theme method, because I want to change the font size of the tick labels too.

thanks again
matthias

ps: Probably it is a bug, that the size is not saved in the template file.
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Mike Buess

USA
3037 Posts
Posted - 09/23/2005 :  08:16:43 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi Matthias,

Not sure why it doesn't work for you but all font sizes are preserved in my templates. Works for graphs created by win -t P <template> and <GraphPage>.Create(<template>). (7.5E SR5)

...As for your original question about how to change font sizes in Origin C, you can use LabTalk properties like this.

<GraphPage>.LT_execute("layer1.x.label.pt=28"); // set X axis tick label font size to 28 in layer 1
<GraphPage>.Layers(0).LT_execute("xb.fsize=8"); // set X axis title font size to 8 in layer 1

Of course it would be much easier if you could just get your template to work properly.

Mike Buess
Origin WebRing Member

Edited by - Mike Buess on 09/23/2005 08:57:04 AM

Edited by - Mike Buess on 09/23/2005 09:07:17 AM
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