WallBlock Macro

1. General Description

The purpose of this macro is to facilitate the creation of intelligent 2D rectangles by means of displaying rectangular wall-blocks occuring in composite walls. This macro is used by the Cavity Closure macro to draw the skin-structure inside the wall, as well as turned plasters outside it. The intelligence is that the 2D "rectangle" can be altered to trapeze, paralellogram or ring-sector according to the wall shape. The following pictures show examples on these distortions in trapeze and curved walls, respectively.

Note, that these turned plasters can be drawn with only 2-2 WallBlock calls.

The macro's output fulfills the following requirements in 2D:

correct alignment with bitmap fills

correct alignment with vectorial fills (local and global orientation)

controllable bounding lines (visibility, pen, linetype, contour status)

2. Parameters

The macro has numerous parameters which are described in this table:

List of parameters

Parameter Name	Type	Description
startX	Length	X position of the leftmost edge.
startY	Length	Y position of the bottom edge.
endX	Length	X position of the rightmost edge.
endY	Length	Y position of the top edge.
innerRadius	Length	Inner radius (R) of the wall. Non-negative value.
skinType	Integer	Type of the block in trapeze walls (when wall inclination is not zero). 0 Rectange 1 Trapeze-A: yEnd coordinate is automatically adjusted via the wall inclination. 2 Trapeze-B: both Y coordinates must be pre-adjusted according to wall inclination. See Remark for details. 3 Parallelogram
arcType	Integer	Type of the block in curved walls (when wall radius is not zero). 0 Normal ring-sector 1 Top-cut ring-sector 2 Bottom-cut ring-sector
bShowLines	Boolean	False if the non-contour-line edges of the block should not be displayed.
ofsOrig	Length	Offset of the wall corner from the the center of the opening, along the X axis (see pictures below).
compositeThickness	Length	Sum of thicknesses of the skins in the composite wall.
fillPen	PenColor	Fill pen of the block.
fillBGPen	PenColor	Background pen of the block.
bLocalFill	Boolean	Flag showing whether the fill coordinate-system is local or not (so it is global).
penStartLine	PenColor	Pen color of the leftmost edge. If 0, no line will be generated.
penEndLine	PenColor	Pen color of the rightmost edge. If 0, no line will be generated.
penTopLine	PenColor	Pen color of the top edge. If 0, no line will be generated.
penBottomLine	PenColor	Pen color of the bottom edge. If 0, no line will be generated.
ltStartLine	LineType	Line type of the leftmost edge.
ltEndLine	LineType	Line type of the rightmost edge.
ltTopLine	LineType	Line type of the top edge.
ltBottomLine	LineType	Line type of the bottom edge.
bContStartLine	Boolean	True if the leftmost edge is a contour line.
bContEndLine	Boolean	True if the rightmost edge is a contour line.
bContTopLine	Boolean	True if the top edge is a contour line.
bContBottomLine	Boolean	True if the bottom edge is a contour line.
iReferenceRadius	Integer	Identifies the radius of the reference arc. In case of curved walls the x dimensions measured along this arc. 0 Reference arc is the wall median (default) 1 Reference arc is the wall inner radius 2 Reference arc is the wall outer radius

3. Usage context

The macro assumes that the local coordinate system is set as shown below:

Trapeze wall

Curved wall

In these figures the black dots represent the center of the openings, that the given plasters are turned to. The ofsOrig parameter is the half of the width of the opening (in this case it is negative!). This signed value is used to calculate the wall thickness at the corner of the opening in case of trapeze walls, and to compute the angle of the radial wall-cut in case of curved walls (beta value in the right figure).

Block corner coordinates

yStart must be less than yEnd, otherwise no shapes will be drawn at all. If xStart equals to xEnd, this macro can be used to draw only the vertical edges (the leftmost and rightmost ones) without any degenerated polygon (in this case the zero-length top and bottom edges will also be omitted).

4. Remark

You should take care that the yEnd value is automatically altered in trapeze walls in case skinType is 1 or 3, in order to draw the skins correctly above the last core skin.

For correct yStart value, you should first call the CompositeLogic macro, retrieve the values of compositeThickness and lastCoreSkinIndex, and use the thick_i values instead of the thk_i ones to calculate this value before you call this macro (where the thk_i values are the skin thicknesses in the WALL_SKINS_PARAMS array, and thick_i can be calculated as follows):

In case of trapeze walls, the meaning of the compositeThickness parameter can be seen on the figure above.