Misc/abrash-black-book
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This commit is contained in:
James Gregory 2013-12-30 18:34:31 +11:00
commit 18011c595a
352 changed files with 6040 additions and 6040 deletions
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20
60-03.md
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@ -33,7 +33,7 @@
static LINESEG *pCompiledLinesegs;
// Builds a BSP tree from the specified line list. List must contain
// at least one entry. If pCurrentTree is NULL, then this is the root
// node, otherwise pCurrentTree is the tree that’s been build so far.
// node, otherwise pCurrentTree is the tree that's been build so far.
// Returns NULL for errors.
LINESEG * SelectBSPTree(LINESEG * plineseghead,
LINESEG * pCurrentTree, LINESEG ** pParentsChildPointer)
@ -45,7 +45,7 @@
LINESEG *pcurrentline;
double nx, ny, numer, denom, t;
// Pick a line as the root, and remove it from the list of lines
// to be categorized. The line we’ll select is the one of those in
// to be categorized. The line we'll select is the one of those in
// the list that splits the fewest of the other lines in the list
minsplits = MAX_INT;
prootline = plineseghead;
@ -58,7 +58,7 @@
pvertexlist[prootline->endvertex].y;
ny = -(pvertexlist[prootline->startvertex].x -
pvertexlist[prootline->endvertex].x);
// Calculate the dot products we’ll need for line
// Calculate the dot products we'll need for line
// intersection and spatial relationship
numer = (nx * (pvertexlist[pcurrentline->startvertex].x -
pvertexlist[prootline->startvertex].x)) +
@ -102,7 +102,7 @@
// appropriate
pminsplit->pfronttree = NULL;
pminsplit->pbacktree = NULL;
// Point the parent’s child pointer to this node, so we can
// Point the parent's child pointer to this node, so we can
// track the currently-build tree
*pParentsChildPointer = pminsplit;
return BuildBSPTree(plineseghead, pminsplit, pCurrentTree);
@ -119,9 +119,9 @@
LINESEG *psplitline;
double nx, ny, numer, denom, t;
int Done;
// Categorize all non-root lines as either in front of the root’s
// infinite line, behind the root’s infinite line, or split by the
// root’s infinite line, in which case we split it into two lines
// Categorize all non-root lines as either in front of the root's
// infinite line, behind the root's infinite line, or split by the
// root's infinite line, in which case we split it into two lines
pfrontlines = NULL;
pbacklines = NULL;
pcurrentline = plineseghead;
@ -135,7 +135,7 @@
pvertexlist[prootline->endvertex].y;
ny = -(pvertexlist[prootline->startvertex].x -
pvertexlist[prootline->endvertex].x);
// Calculate the dot products we’ll need for line intersection
// Calculate the dot products we'll need for line intersection
// and spatial relationship
numer = (nx * (pvertexlist[pcurrentline->startvertex].x -
pvertexlist[prootline->startvertex].x)) +
@ -174,8 +174,8 @@
// The line segment must be split; add one split
// segment to each list
if (NumCompiledLinesegs > (MAX_NUM_LINESEGS - 1)) {
DisplayMessageBox(“Out of space for line segs;”
“increase MAX_NUM_LINESEGS”);
DisplayMessageBox("Out of space for line segs;"
"increase MAX_NUM_LINESEGS");
return NULL;
}
// Make a new line entry for the split part of line