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 Tools for Microsoft .Net & .Net Compact Framework
 QCChart2D and QCChart2D CF (VB and C#)
 Line Width
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jfu

11 Posts

Posted - 17 Feb 2006 :  16:42:30  Show Profile  Reply with Quote
Is it possible to set the line width less than 1?

I know we can use SetLineWidth to set line width to 0.5. But when you print your graph, the actual line width is the same as you set line width to 1.

Thanks,


Jim Fu


jfu

quinncurtis

1164 Posts

Posted - 17 Feb 2006 :  17:10:26  Show Profile  Reply with Quote
The minimum line width for screen display is one pixel. In order to maintain WYSIWYG the printer output is the same proportional size. The Windows printer drivers are then able to map colors to various levels of grayscale for B&W printers.
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jfu

11 Posts

Posted - 20 Feb 2006 :  08:58:04  Show Profile  Reply with Quote
When you set line width to one pixel, The graph looks great on screen. But when you print that graph. The lines become thicker than the lines on screen. It doesn't keep the same proportional size. The old version QC Tool(3.0) is much better than .net version.

Thanks,

Jim

jfu
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quinncurtis

1164 Posts

Posted - 20 Feb 2006 :  09:59:24  Show Profile  Reply with Quote
We looked at some printouts objectively and do not see lines printed proportionally thicker than displayed on the screen. We think the .Net software is much more accurate at reproducing the screen image at high resolution than any of our older Windows software. If you have a simple example that you feel demonstrates the problem, you can send the complete project to support@quinn-curtis.com and we will look at it.
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bli7167

12 Posts

Posted - 28 Mar 2006 :  10:01:32  Show Profile  Reply with Quote
Any news on this? Do you still need a sample priject? I experiences the same scenario, that a 1 pixel line on screen is MUCH thicker on the print out.

Also when I plot a grid and select DOT as line style, what comes out is not really a dot, but a little v shaped mark pointing to various directions.

Thanks.

Bing



B7167
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quinncurtis

1164 Posts

Posted - 28 Mar 2006 :  10:04:36  Show Profile  Reply with Quote
Yes, we need an example, since we are not aware of any of our printing examples (see the example LinePlotSalesVolume) reproducing the line thickness problem. The originator of this thread never sent us an example.
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bli7167

12 Posts

Posted - 28 Mar 2006 :  11:43:46  Show Profile  Reply with Quote
Hi,

Thanks for your help.

Do you have a fax number, I'd like to send you some print out some sample charts from inhouse w/ regard to line width.

I will also send you my sample test program in a separate mail.

Thanks.

Bing

B7167
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quinncurtis

1164 Posts

Posted - 28 Mar 2006 :  11:59:27  Show Profile  Reply with Quote
If we need any faxes we will let you know. Just send an example program and EXACT, DETAILED, instructions on how to reproduce the problem.

But first, before you do anything, please answer these questions:

1. Did you print while running the LinePlotSalesVolume example ? And
did the program reproduce the problem ?

2. Can you make the example program LinePlotSalesVolume reproduce the problem by making changes to it ?
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quinncurtis

1164 Posts

Posted - 28 Mar 2006 :  15:55:54  Show Profile  Reply with Quote
The lines in your example program print proportionate to the lines in the image on the screen.

What you actually want is disproportinate printing, where the printed graph has lines much thinner than they appear on the screen, in order to match some in-house program that you have. The software does not support dis-proportionate printing, because that violates the WYSIWYG philosophy of the software.
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