[fc] Problem creating duplicate shape on new selected location

Discussion:

Farrukh

2014-08-05 10:45:18 UTC

Hi
i have drawn polygon on floatcanvas and when i create duplicate shape
that overwritten on same shape because of coordinates. my coorindates
are like this
[(-198.12865497076021, 355.08771929824559), (-210.9941520467836,
460.584795321
63739), (288.18713450292393, 512.046783625731), (321.63742690058479,
375.6725146
1988303), (108.07017543859648, 370.52631578947364), (133.80116959064327,
303.625
73099415204), (-198.12865497076021, 355.08771929824559)]

now i don't know how i can change coordinates to new X, Y and preserving
shape as it is. any help is appreciated.

Farrukh

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Chris Barker - NOAA Federal

2014-08-06 02:04:54 UTC

Permalink

Hi,

Sorry, on a phone now, so can't give examples. But I'm not sure I
understand what you want to do.

If two polygons happen to have the same coordinates, one will simply
be drawn on top of the other.

There is no automatic way to great a copy of a draw object -- you need
to create a new one with the same properties ( though copy.copy may
work -- I haven't tried it ).

If you want to change the coordinates, you can call Polygon.SetPoints(
theNewPoints )
Or

Polygon.Move()
If you want to keep it the same shape and move the whole thing.

HTH,

Chris

Post by Farrukh
Hi
i have drawn polygon on floatcanvas and when i create duplicate shape
that overwritten on same shape because of coordinates. my coorindates
are like this
[(-198.12865497076021, 355.08771929824559), (-210.9941520467836,
460.584795321
63739), (288.18713450292393, 512.046783625731), (321.63742690058479,
375.6725146
1988303), (108.07017543859648, 370.52631578947364), (133.80116959064327,
303.625
73099415204), (-198.12865497076021, 355.08771929824559)]
now i don't know how i can change coordinates to new X, Y and preserving
shape as it is. any help is appreciated.
Farrukh
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Farrukh

2014-08-06 06:51:43 UTC

Permalink

Thank you Polygon.Move() is exactly what i needed.

I have another question that obj coordinates like polygon can be drawn
using list of points, i need to get those list of points on which moved
shape is present.

Post by Chris Barker - NOAA Federal
Hi,
Sorry, on a phone now, so can't give examples. But I'm not sure I
understand what you want to do.
If two polygons happen to have the same coordinates, one will simply
be drawn on top of the other.
There is no automatic way to great a copy of a draw object -- you need
to create a new one with the same properties ( though copy.copy may
work -- I haven't tried it ).
If you want to change the coordinates, you can call Polygon.SetPoints(
theNewPoints )
Or
Polygon.Move()
If you want to keep it the same shape and move the whole thing.
HTH,
Chris

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Chris Barker - NOAA Federal

2014-08-06 15:09:38 UTC

Permalink

Post by Farrukh
Thank you Polygon.Move() is exactly what i needed.
I have another question that obj coordinates like polygon can be drawn
using list of points, i need to get those list of points on which moved
shape is present.

Shape.Points

As it is not well documented, browsing the source is the best way to
figure this sort of thing out.

As well as introspection:

Print dir( shape )

Will show you all the attributes of your shape -- the names are pretty
self-explanatory.

-Chris

-Chris

Post by Farrukh

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Farrukh

2014-08-06 16:06:53 UTC

Permalink

Thank you once again it is what i wanted to do, sorry for my lack of
knowledge.

Farrukh

Post by Chris Barker - NOAA Federal

Shape.Points
As it is not well documented, browsing the source is the best way to
figure this sort of thing out.
Print dir( shape )
Will show you all the attributes of your shape -- the names are pretty
self-explanatory.
-Chris
-Chris

Post by Farrukh

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