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#1
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Venn diagrams in Visio?
Logic texts use simple diagrams called Venn diagrams. They have
overlapping circles as components, with parts of the circles filled in, to illustrate different relations between sets. If I put two overlapping circles on a Visio diagram, I can fill in both circles with the same pattern. This illustrates the union of two sets. To illustrate the intersection, I need to fill in just the area where the two circles overlap. This area is not a separate Visio shape, so I'm having trouble figuring out how to do this. I thought maybe I could give complementary fills to the two circles somehow, so that the fill would only be visible in the intersection, but haven't found anything that works. Anybody know a Visio trick to solve this problem? Thanks. Mike Carroll |
#2
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Venn diagrams in Visio?
There's indeed a trick:
- Draw your ovals (Venn diagram symbols), the way they overlap like you want them. - Select both (or more) ovals - Select Shape - Operations - Fragment Result: you will have (in case of 2 ovals) 3 separate areas, that you can for instance separately fill with a different color. --Geert "Mike Carroll" wrote in message om... Logic texts use simple diagrams called Venn diagrams. They have overlapping circles as components, with parts of the circles filled in, to illustrate different relations between sets. If I put two overlapping circles on a Visio diagram, I can fill in both circles with the same pattern. This illustrates the union of two sets. To illustrate the intersection, I need to fill in just the area where the two circles overlap. This area is not a separate Visio shape, so I'm having trouble figuring out how to do this. I thought maybe I could give complementary fills to the two circles somehow, so that the fill would only be visible in the intersection, but haven't found anything that works. Anybody know a Visio trick to solve this problem? Thanks. Mike Carroll |
#3
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Venn diagrams in Visio?
One remark:
The parts will be physically separated (hence 'fragment')... So, if you select one of the items and move it, then the rest will not follow... Hope this is what you were looking for. If not, others any idea? --Geert "Geert Vancompernolle" wrote in message ... There's indeed a trick: - Draw your ovals (Venn diagram symbols), the way they overlap like you want them. - Select both (or more) ovals - Select Shape - Operations - Fragment Result: you will have (in case of 2 ovals) 3 separate areas, that you can for instance separately fill with a different color. --Geert "Mike Carroll" wrote in message om... Logic texts use simple diagrams called Venn diagrams. They have overlapping circles as components, with parts of the circles filled in, to illustrate different relations between sets. If I put two overlapping circles on a Visio diagram, I can fill in both circles with the same pattern. This illustrates the union of two sets. To illustrate the intersection, I need to fill in just the area where the two circles overlap. This area is not a separate Visio shape, so I'm having trouble figuring out how to do this. I thought maybe I could give complementary fills to the two circles somehow, so that the fill would only be visible in the intersection, but haven't found anything that works. Anybody know a Visio trick to solve this problem? Thanks. Mike Carroll |
#4
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Venn diagrams in Visio?
If you are using Visio 2002 or Visio 2003 you could also use fill
transparency to get an overlapping effect. "Geert Vancompernolle" wrote in message ... One remark: The parts will be physically separated (hence 'fragment')... So, if you select one of the items and move it, then the rest will not follow... Hope this is what you were looking for. If not, others any idea? --Geert "Geert Vancompernolle" wrote in message ... There's indeed a trick: - Draw your ovals (Venn diagram symbols), the way they overlap like you want them. - Select both (or more) ovals - Select Shape - Operations - Fragment Result: you will have (in case of 2 ovals) 3 separate areas, that you can for instance separately fill with a different color. --Geert "Mike Carroll" wrote in message om... Logic texts use simple diagrams called Venn diagrams. They have overlapping circles as components, with parts of the circles filled in, to illustrate different relations between sets. If I put two overlapping circles on a Visio diagram, I can fill in both circles with the same pattern. This illustrates the union of two sets. To illustrate the intersection, I need to fill in just the area where the two circles overlap. This area is not a separate Visio shape, so I'm having trouble figuring out how to do this. I thought maybe I could give complementary fills to the two circles somehow, so that the fill would only be visible in the intersection, but haven't found anything that works. Anybody know a Visio trick to solve this problem? Thanks. Mike Carroll |
#5
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Venn diagrams in Visio?
"Geert Vancompernolle" wrote in message ...
There's indeed a trick: - Draw your ovals (Venn diagram symbols), the way they overlap like you want them. - Select both (or more) ovals - Select Shape - Operations - Fragment Result: you will have (in case of 2 ovals) 3 separate areas, that you can for instance separately fill with a different color. Hi Geert, Hey, I had never heard of "Fragment" before. I tried it out and it does just what I wanted. (I tried positioning an elipse over the intersection, but that's a hack.) -- I'll make sure I fragment after I've got everything else set up, so I don't have to worry about moving around. Thanks much for your help. Mike Carroll |
#6
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Venn diagrams in Visio?
Sorry Lori, the overlapping colours tend to give a washed out effect. For
Venn diagrams the colour contrast is a lot stronger. For example, a yellow circle overlapping a blue circle will have a green overlapping area. For the current version of Visio, the overlap colour is dependant on which circle is in front. (It's number 34 on the wish list.) For now the fragmenting solution gives the best results. John... Visio MVP Need stencils or ideas? http://www.mvps.org/visio/3rdparty.htm Need VBA examples? http://www.mvps.org/visio/VBA.htm Common Visio Questions http://www.mvps.org/visio/common_questions.htm |
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