Recent changes to support-requests

Loading custom fonts

Geoff Greene — Fri, 28 Oct 2022 17:23:38 -0000

Im using zedgraph in a csharp page to generate a graph. I'd like to try to make it load a custom font (a .ttf file) to use as the font.

This is running in an environment in which I do not have access to the standard windows fonts directory. In fact, the only font installed on this machine is courier (yuck).

How do I make zedgraph use a font that is not in my c:\windows directory

I've looked at microsoft's PrivateFont Collection https://learn.microsoft.com/en-us/dotnet/desktop/winforms/advanced/how-to-create-a-private-font-collection?view=netframeworkdesktop-4.8&redirectedfrom=MSDN and thats close to what I want. but I don't know what do after I create a privateFontCollection. all I did was :

// i've tried the below in a using statement, too but no love
PrivateFontCollection privateFontCollection = new PrivateFontCollection();
 string fontsDir = LocateDirectory("fonts") + @"\";
 privateFontCollection.AddFontFile(fontsDir + "PLAYBILL.ttf"); // playbill not installed on local machine

 using (ZedGraphControl zedGraph = new ZedGraphControl())
 {
     zedGraph.GraphPane = new GraphPane();
     zedGraph.GraphPane.Title.Text = title;
     zedGraph.GraphPane.Title.FontSpec = new FontSpec("Playbill", 16, Color.Black, true, false, false); // the font is always the default, not the one i want.
     zedGraph.GraphPane.Title.FontSpec.Border = new Border(false, Color.White, 0);
     // other zedgraph stuff goes here, but the last line renders it to a file.
 }

So? how do you load a new font so ZedGraph can see it

#154 errors on older project

discomurray — Mon, 24 Oct 2016 16:38:20 -0000

Hi Ryan,

It appears that the version that you were compiliing to was a much older version that you think.

John introduced the Scale class in Dec 2005 v4.3.2. This class extracted the min/max and step configuration to a seperate class.

to set the Axis min/max use
currentPlot.YAxis.Scale.Min = 0
currentPlot.YAxis.Scale.Max = 2.5

The axis title properties have been changed to an AxisLabel in v5. Access its title
currentPlot.XAxis.Title.Text
currentPlot.YAxis.Title.Text

Title has changed from a string to a Label
access the title
currentPlot.Title.Text

errors on older project

Ryan Sargent — Mon, 24 Oct 2016 14:11:22 -0000

I am using Zedgraph version 5.1.5.28844 with VS 2015. This project compiled about a year ago but now after opening I am getting errors that don't make sense. I am getting errors like Title is readonly and Min is not a member of Yaxis. I know that a year ago it was. Don't know what the deal is. I tried reloading the older resource but still getting the same errors. Does anyone have an explainination?

how to zoom in and zoom out?

Sabir — Mon, 16 Mar 2015 07:22:32 -0000

I can't zoom in and zoom out, when I left click in the graph area, I can't drag out a new rectangle ?

#135 Number of points vs screen resolution

Steve Levitt — Tue, 10 Feb 2015 12:56:14 -0000

I too suffer from this problem. Has anybody looked at inside Zedgraph, or come up with a workaround before the data set is passed to zedgraph?

XML to Graph

PW_Felso — Mon, 09 Feb 2015 07:51:33 -0000

Hello everyone,

is it possible to read a XML File like this one

<data> <general> <comission>788945</comission> <name>TEST</name> <datetime>Mon Feb 2 2015 ; 16:02:20</datetime> </general> <M1.7> <name>M1</name> <value timestamp="16:02:20">false</value> <value timestamp="16:02:21">true</value> <value timestamp="16:02:22">false</value> . . .

and set the timestamp as x-Axis and value as y-Axis directly?
Or is there an easy way to do it with XML Writer and ZedGraph?

PointValueEvent never firing

ben — Fri, 13 Jun 2014 05:07:58 -0000

I can't get this event to fire at all.
I have added the handler:
this.zg1.PointValueEvent += new ZedGraph.ZedGraphControl.PointValueHandler(this.myPointValueHandler3);

but myPointValueHandler3 is never reached.

What could I be doing wrong?
thanks

#149 Drawing Circles/Ellipses

Chae Kim — Fri, 23 May 2014 20:19:28 -0000

...

Drawing Circles/Ellipses

Chae Kim — Fri, 23 May 2014 20:18:09 -0000

Hi, is there a way to draw multiple circles/ellipses on the ZedGraphControl, just like the way you can add multiple curves, using format similar to .net DrawEllipse function? If so can you provide some examples?

Thank you

#137 error encountered in accessing page

Joe Pool — Wed, 07 Aug 2013 15:19:20 -0000

Looks like there is more than one:

Server: zedgraph.sourceforge.net
URL path: /source/verticalbarswithlabels.html
Error notes: NONE
Error type: 404
Request method: GET
Request query string: NONE
Time: 2013-08-07 15:08:31 UTC (1375888111)