Slowdown when putting symbols into image data

[William Prothero]

Jacqueline:
I didn’t know that markers could be applied to the points on a line. I see now, very cool. I’ll take that approach. I can see in the object inspector where to make up the markers. Looks straightforward.
Thanks again,
Bill
On Sep 9, 2014, at 2:50 PM, J. Landman Gay <jacque at hyperactivesw.com> wrote:

> On 9/9/2014, 4:28 PM, William Prothero wrote:
> > Jacqueline: Sounds like a good idea. I don’t see how, though, that
> > you would be able to display a LOT of identical symbols on a map
> > using a single polygon graphic. Don’t you have to create and place
> > each one? That would mean thousands of graphic objects. Is that what
> > you mean?
> 
> 
> Oh no, not at all. Not having thousands of objects is exactly the reason to choose graphic objects.
> 
> Every point on a graphic can display a marker which is just a small image you provide. If you set the linesize of the graphic to 0, the lines don't show, all you see are the markers. Then you just make a list of the locations, one per point, one point per line, and set the graphic's points property to that list.
> 
> The graphic can cover as much area as you need, it can sprawl all over the card. All you see are the points, and each point is a symbol image. The only restriction is that a graphic can only show one type of marker, so you'll need a different graphic for each symbol image you want to display. In my case, I had five symbols, so I needed five graphics. But each graphic had hundreds of points.
> 
> 
> -- 
> Jacqueline Landman Gay         |     jacque at hyperactivesw.com
> HyperActive Software           |     http://www.hyperactivesw.com
> 
> 
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