Le Forgeron at 08:10, 3 June 2019

2019-06-03T08:10:38Z

Le Forgeron: Created page with "{{User:Le_Forgeron/HgPovray38/soon}} == Access to part of compound object == Compound objects can be made of: * Constructive Solid Geometry (CSG : difference, union, merge, ..."

2018-07-04T11:10:35Z

Created page with "{{User:Le_Forgeron/HgPovray38/soon}} == Access to part of compound object == Compound objects can be made of: * Constructive Solid Geometry (CSG : difference, union, merge, ..."

New page

{{User:Le_Forgeron/HgPovray38/soon}}

== Access to part of compound object ==

Compound objects can be made of:
* Constructive Solid Geometry (CSG : difference, union, merge, intersection)
* Generalised Symetric Difference ([[User:Le_Forgeron/gsd|GSD]]: interunion, intermerge)

=== Data access ===

The <code>children</code> function take an object as parameter, and return the number of first level sub-objects in it.

* if parameter is not compound compatible, it returns -1

=== Getting a copy of an object inside a compound object ===

A small SDL extension, to retrieve the object inside an existing compound object (CSG or GSD).

<pre>
child { CSG_Object_ID }( Index )
</pre>

The index start at 0 for the first child of the CSG. Only the first level of the CSG is explored (recursion in CSG structure must be handled the same way: with recursion).

It is recommended to use <code>children( CSG_Object_ID )</code> to check the object first, as <code>child</code> generates an error whenever:
* the object is not compound
* the index is out of bound in regard to the number of first level subobject in the compound object

@@ Line 1: / Line 1: @@
-{{User:Le_Forgeron/HgPovray38/soon}}
+{{User:Le_Forgeron/HgPovray38/available}}
 == Access to part of compound object ==
@@ Line 5: / Line 5: @@
 Compound objects can be made of:
 * Constructive Solid Geometry (CSG : difference, union, merge, intersection)
-* Generalised Symetric Difference ([[User:Le_Forgeron/gsd|GSD]]: interunion, intermerge)
+* Generalised Symmetric Difference ([[User:Le_Forgeron/gsd|GSD]]: interunion, intermerge)
 === Data access ===
@@ Line 18: / Line 18: @@
 <pre>
-child { CSG_Object_ID }( Index )
+child ( Compound_Object_ID , Index )
 </pre>
 The index start at 0 for the first child of the CSG. Only the first level of the CSG is explored (recursion in CSG structure must be handled the same way: with recursion).
-It is recommended to use <code>children( CSG_Object_ID )</code> to check the object first, as <code>child</code> generates an error whenever:
+It is recommended to use <code>children( Compound_Object_ID )</code> to check the object first, as <code>child</code> generates an error whenever:
 * the object is not compound
 * the index is out of bound in regard to the number of first level subobject in the compound object

User:Le Forgeron/compound - Revision history

Le Forgeron at 08:10, 3 June 2019

Le Forgeron: Created page with "{{User:Le_Forgeron/HgPovray38/soon}} == Access to part of compound object == Compound objects can be made of: * Constructive Solid Geometry (CSG : difference, union, merge, ..."