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Support for magnification, bounding boxes fully implemented

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This commit is contained in:
Mario Hüttel 2018-07-04 21:46:39 +02:00
parent 542737622f
commit 7d66ca1280
3 changed files with 83 additions and 39 deletions
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112
gds-parser/gds-parser.c
View File

@ -350,18 +350,76 @@ void scan_library_references(gpointer library_list_item, gpointer user)
g_list_foreach(lib->cells, scan_cell_reference_dependencies, lib);
}
static void apply_transforms_on_bounding_box(struct gds_cell_instance *cell_inst, struct gds_bounding_box *result)
{
struct gds_dpoint vertices[4];
int i;
double xmin= INT_MAX, xmax=INT_MIN, ymin=INT_MAX, ymax= INT_MIN;
double temp;
double phi = M_PI * cell_inst->angle / 180;
if (cell_inst->cell_ref->bounding_box.scanned == FALSE)
return;
if (!result)
return;
/* Calculate all 4 bounding box points */
vertices[0].x = cell_inst->cell_ref->bounding_box.coords[0].x;
vertices[0].y = cell_inst->cell_ref->bounding_box.coords[0].y;
vertices[1].x = cell_inst->cell_ref->bounding_box.coords[0].x;
vertices[1].y = cell_inst->cell_ref->bounding_box.coords[1].y;
vertices[2].x = cell_inst->cell_ref->bounding_box.coords[1].x;
vertices[2].y = cell_inst->cell_ref->bounding_box.coords[1].y;
vertices[3].x = cell_inst->cell_ref->bounding_box.coords[1].x;
vertices[3].y = cell_inst->cell_ref->bounding_box.coords[0].y;
/* Apply flipping and magnification */
for (i = 0; i < 4; i++) {
vertices[i].x = (vertices[i].x * cell_inst->magnification);
vertices[i].y = (vertices[i].y * cell_inst->magnification * (cell_inst->flipped ? -1 : 1));
}
/* Apply rotation */
for (i = 0; i < 4; i++) {
temp =(cos(phi) * vertices[i].x - sin(phi) * vertices[i].y);
vertices[i].y =(sin(phi) * vertices[i].x + cos(phi) * vertices[i].y);
vertices[i].x = temp;
}
/* Translate origin */
for (i = 0; i < 4; i++) {
vertices[i].x += (double)cell_inst->origin.x;
vertices[i].y += (double)cell_inst->origin.y;
}
/* Calculate new bounding box */
for (i = 0; i < 4; i++) {
xmin = MIN(xmin, vertices[i].x);
ymin = MIN(ymin, vertices[i].y);
ymax = MAX(ymax, vertices[i].y);
xmax = MAX(xmax, vertices[i].x);
}
result->scanned = TRUE;
result->coords[0].x = xmin;
result->coords[0].y = ymin;
result->coords[1].x = xmax;
result->coords[1].y = ymax;
}
static void cell_create_bounding_box(struct gds_cell *cell)
{
GList *ref;
GList *gfx_list;
GList *vertex_list;
struct gds_bounding_box box_transform;
struct gds_cell_instance *cell_inst;
struct gds_graphics *gfx;
struct gds_point *vertex;
int xlow=0, xhigh=0, ylow=0, yhigh=0;
gboolean first = TRUE;
double xlow=INT_MAX, xhigh=INT_MIN, ylow=INT_MAX, yhigh=INT_MIN;
if (cell->bounding_box.scanned == TRUE)
return;
@ -372,30 +430,16 @@ static void cell_create_bounding_box(struct gds_cell *cell)
if (cell_inst->cell_ref) {
if (cell_inst->cell_ref->bounding_box.scanned == FALSE)
cell_create_bounding_box(cell_inst->cell_ref);
/* TODO: calculate rotation and inversion to process size correctly */
/* Apply transforms of cell in current cell to calculate the box of the specific instance */
if (cell_inst->cell_ref->bounding_box.scanned == TRUE) {
if (first == TRUE) {
xlow = cell_inst->cell_ref->bounding_box.coords[0].x +
cell_inst->origin.x;
ylow = cell_inst->cell_ref->bounding_box.coords[0].y +
cell_inst->origin.y;
xhigh = cell_inst->cell_ref->bounding_box.coords[1].x +
cell_inst->origin.x;
yhigh = cell_inst->cell_ref->bounding_box.coords[1].y +
cell_inst->origin.y;
first = FALSE;
} else {
xlow = MIN(cell_inst->cell_ref->bounding_box.coords[0].x +
cell_inst->origin.x, xlow);
ylow = MIN(cell_inst->cell_ref->bounding_box.coords[0].y +
cell_inst->origin.y, ylow);
xhigh = MAX(cell_inst->cell_ref->bounding_box.coords[1].x +
cell_inst->origin.x, xhigh);
yhigh = MAX(cell_inst->cell_ref->bounding_box.coords[1].y +
cell_inst->origin.y, yhigh);
}
apply_transforms_on_bounding_box(cell_inst, &box_transform);
xlow = MIN(xlow, box_transform.coords[0].x);
ylow = MIN(ylow, box_transform.coords[0].y);
xhigh = MAX(xhigh, box_transform.coords[1].x);
yhigh = MAX(yhigh, box_transform.coords[1].y);
} else
GDS_WARN("Unscanned cells present. This should not happen");
GDS_WARN("Unscanned cells present: %s. This should not happen", cell_inst->ref_name);
} else
GDS_WARN("Cell referenced that does not exist: %s. Bounding box might be incorrect.",
cell_inst->ref_name);
@ -407,22 +451,16 @@ static void cell_create_bounding_box(struct gds_cell *cell)
for (vertex_list = gfx->vertices; vertex_list != NULL; vertex_list = vertex_list->next) {
vertex = (struct gds_point *)vertex_list->data;
if (first == TRUE) {
xlow = vertex->x - (gfx->gfx_type == GRAPHIC_PATH ? gfx->width_absolute / 2: 0);
ylow = vertex->y - (gfx->gfx_type == GRAPHIC_PATH ? gfx->width_absolute / 2 : 0);
xhigh = vertex->x + (gfx->gfx_type == GRAPHIC_PATH ? gfx->width_absolute / 2: 0);
yhigh = vertex->y + (gfx->gfx_type == GRAPHIC_PATH ? gfx->width_absolute / 2 : 0);
first = FALSE;
} else {
xlow = MIN(xlow, vertex->x - (gfx->gfx_type == GRAPHIC_PATH ? gfx->width_absolute / 2 : 0));
ylow = MIN(ylow, vertex->y - (gfx->gfx_type == GRAPHIC_PATH ? gfx->width_absolute / 2 : 0));
xhigh = MAX(xhigh, vertex->x + (gfx->gfx_type == GRAPHIC_PATH ? gfx->width_absolute / 2 : 0));
yhigh = MAX(yhigh, vertex->y + (gfx->gfx_type == GRAPHIC_PATH ? gfx->width_absolute / 2 : 0));
}
xlow = MIN(xlow, (double)vertex->x - (gfx->gfx_type == GRAPHIC_PATH ? (double)gfx->width_absolute / 2 : 0));
ylow = MIN(ylow, (double)vertex->y - (gfx->gfx_type == GRAPHIC_PATH ? (double)gfx->width_absolute / 2 : 0));
xhigh = MAX(xhigh, (double)vertex->x + (gfx->gfx_type == GRAPHIC_PATH ? (double)gfx->width_absolute / 2 : 0));
yhigh = MAX(yhigh, (double)vertex->y + (gfx->gfx_type == GRAPHIC_PATH ? (double)gfx->width_absolute / 2 : 0));
}
}
printf("Cell '%s' has size: %d / %d\n", cell->name, xhigh - xlow, yhigh - ylow);
printf("Cell '%s' has size: %lf / %lf\n", cell->name, xhigh - xlow, yhigh - ylow);
cell->bounding_box.coords[0].x = xlow;
cell->bounding_box.coords[0].y = ylow;
cell->bounding_box.coords[1].x = xhigh;

7
gds-parser/gds-types.h
View File

@ -14,9 +14,14 @@ struct gds_point {
int y;
};
struct gds_dpoint {
double x;
double y;
};
struct gds_bounding_box {
gboolean scanned;
struct gds_point coords[2];
struct gds_dpoint coords[2];
};
struct gds_time_field {

3
latex-output/latex-output.c
View File

@ -170,7 +170,8 @@ static void render_cell(struct gds_cell *cell, GList *layer_infos, FILE *tex_fil
g_string_printf(buffer, "\\begin{scope}[rotate=%lf]\n", inst->angle);
WRITEOUT_BUFFER(buffer);
g_string_printf(buffer, "\\begin{scope}[yscale=%s]\n", (inst->flipped ? "-1" : "1"));
g_string_printf(buffer, "\\begin{scope}[yscale=%lf, xscale=%lf]\n", (inst->flipped ? -1*inst->magnification : inst->magnification),
inst->magnification);
WRITEOUT_BUFFER(buffer);
render_cell(inst->cell_ref, layer_infos, tex_file, buffer);