Complex Polygons

[indy2005]

Hi,

How does mekanimo deal with complex/concave polygons? Does it just
make several compound shapes from concave polygons to simulate the
large complex polygon?

Regards

i

[Fahri]

Box2D deals with convex polygons only. In addition to this there are
some other limitations related to the internal angles and vertex
order. Mekanimo tries to convert the user created polygons into
suitable partitions for Box2D. If it cannot achieve this then it
shows an error message.

To see how your polygon is partitioned type

>>> polygon1.showPartitions = True

at the interpreter. Then you can see the partitions. To see the
vertex numbers type

>>> polygon1.showNumbers = True

at the interpreter and click in the canvas to refresh it.

Fahri

[indy2005]

Hi,

I mistyped True as true and it deleted the polygon.

Traceback (most recent call last):
File "Code", line 267, in <module>
AttributeError: 'function' object has no attribute 'show'
Traceback (most recent call last):
File "Code", line 267, in <module>
NameError: name 'true' is not defined
Traceback (most recent call last):
File "Code", line 267, in <module>
NameError: name 'true' is not defined
Traceback (most recent call last):
File "Code", line 267, in <module>
NameError: name 'true' is not defined
Traceback (most recent call last):
File "Code", line 267, in <module>
NameError: name 'true' is not defined
Traceback (most recent call last):
File "Code", line 267, in <module>
NameError: name 'true' is not defined

THen when I readded the polygon, It still removed the polygon
completely?

Regards

i

[Fahri]

Can you show us exactly what you typed? I cannot replicate this.

[indy2005]

I made a complex polygon, polygon1.

Went into the interpreter, typed

polygon1.showPartitions = true

note the lower case

Got this error

Traceback (most recent call last):

File "Code", line 508, in <module>

NameError: name 'true' is not defined

Then lost the polygon

[Fahri]

There must be something else going on.

This is what I get

polygon1.showPartitions = true

Traceback (most recent call last):

File "<input>", line 1, in <module>

NameError: name 'true' is not defined

Then I still have the polygon.

[indy2005]

dont worry, I will let you know if it happens again...it crashed
shortly afterwards so something wasnt right.