Re: Problem with Units of SVG

Thanks for your answer

In fact I had posted html render of my code in my main post, but since it was too long, only a part of it was included in email alert. I summarized the code and post it here once more:

<svg xmlns="http://www.w3.org/2000/svg" id="ctl00_ctl00_MainContent_UnitedPage_CP4_Graphics2DCanvas1_SVG" viewBox="-20.4572 -2.4845 24.2 12.1" width="10cm" height="10cm" ZoomFactor="1.1">
	<g id="ctl00_ctl00_MainContent_UnitedPage_CP4_Graphics2DCanvas1_SVG_TopMostGroup" transform="scale(1 -1)">
		<polygon id="ctl00_ctl00_MainContent_UnitedPage_CP4_Graphics2DCanvas1-1" visibility="visible" fill="gray" fill-rule="inherit" stroke="black" stroke-dashoffset="" stroke-linecap="inherit" stroke-linejoin="inherit" stroke-width="0.5%" points="10,5 -10,5 -10,-5 10,-5" externalResourcesRequired="False" Parent_ID="Graphics2DCanvas1" SVG_ID="ctl00_ctl00_MainContent_UnitedPage_CP4_Graphics2DCanvas1" ?="" />
		<g id="ctl00_ctl00_MainContent_UnitedPage_CP4_Graphics2DCanvas1-2" visibility="visible" externalResourcesRequired="False" Parent_ID="Graphics2DCanvas1" SVG_ID="ctl00_ctl00_MainContent_UnitedPage_CP4_Graphics2DCanvas1">
			<line id="ctl00_ctl00_MainContent_UnitedPage_CP4_Graphics2DCanvas1-3" visibility="visible" stroke="blue" stroke-dashoffset="" stroke-linecap="inherit" stroke-linejoin="inherit" stroke-width="1cm" externalResourcesRequired="False" x1="-9.5" y1="-5" x2="-9.5" y2="5" Parent_ID="ctl00_ctl00_MainContent_UnitedPage_CP4_Graphics2DCanvas1-2" SVG_ID="ctl00_ctl00_MainContent_UnitedPage_CP4_Graphics2DCanvas1" ?="" />
			<line id="ctl00_ctl00_MainContent_UnitedPage_CP4_Graphics2DCanvas1-4" visibility="visible" stroke="blue" stroke-dashoffset="" stroke-linecap="inherit" stroke-linejoin="inherit" stroke-width="1cm" externalResourcesRequired="False" x1="-8.5" y1="-5" x2="-8.5" y2="5" Parent_ID="ctl00_ctl00_MainContent_UnitedPage_CP4_Graphics2DCanvas1-2" SVG_ID="ctl00_ctl00_MainContent_UnitedPage_CP4_Graphics2DCanvas1" ?="" />
		</g>
	</g>
</svg>

This is a polygon and two lines which must be show as stripes on a part of rectangle.

you can inset it in a test HTML page and see that it doesn't work.

hope you can help.

regards

--- In [email protected], Jason Barnabas <jtbarnabas@...> wrote:
>
> > From: Alireza <ahmadi_rad@...>
> > Sent: Sun, March 3, 2013 6:43:47 PM
> > 
> > hello
> > 
> > I have an asp.net page which contains auto generated svg shapes.  shape is 
> >always a rectangle which is filled in gray and 20 color lines as  stripes cover 
> >a part of this rectangle.
> > 
> > Problem:
> > sometimes stroke  width is a fractional number less than 1 according to 
> >calculations. In such  cases the stripes aren't shown if units are in pixel. I 
> >changed units of lines  to Cm so that fractional numbers are also rendered. This 
> >worked but we can not  define unit for polygon the same way. 
> >
> > Then I tried to define the outer svg  "width" and "height" properties in Cm 
> >units so that every thing is shown in CM,  then polygon and stripe lines are 
> >scaled and no more proportional. could you  please help?
> 
> 
> I don't know if this will help, but here goes. Before I started working with SVG 
> I had never used vector graphics. It took me a while to figure out how some 
> things worked. Here's one of the things I had trouble wrapping my head around, 
> lines have a width of 0.
> 
> I mean I knew that from math and trig from school, but coming to the realization 
> of this fact helped me to understand why SVG behaved the way it did in some 
> cases. Lines have to have strokes to be visible and it has been my experience 
> that SVG renders stroke-widths of less than 1 as lighter colors so they look 
> smaller but the minimum stroke width is still 1 pixel.
> 
> Jason
>




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