Exemple #1
0
int draw_outline(void)
{
    int raster_size;

    row = col = top = 0;	/* get started for read of first */
    bottom = 1;			/*   line from raster map */
    scan_length = read_next();
    k = 0;
    raster_size = Rast_cell_size(map_type);
    while (read_next()) {	/* read rest of file, one row at *//*   a time */
	n1 = Rast_row_to_northing((double)row - 1., &(PS.w));
	n2 = Rast_row_to_northing((double)row, &(PS.w));
	n3 = Rast_row_to_northing((double)row + 1., &(PS.w));

	for (col = 0; col < scan_length - 1; col++) {
	    e1 = Rast_col_to_easting((double)col - 1., &(PS.w));
	    e2 = Rast_col_to_easting((double)col, &(PS.w));
	    e3 = Rast_col_to_easting((double)col + 1., &(PS.w));
	    tl = G_incr_void_ptr(buffer[top], col * raster_size);
	    /* top left in window */
	    tr = G_incr_void_ptr(buffer[top], (col + 1) * raster_size);
	    /* top right in window */
	    bl = G_incr_void_ptr(buffer[bottom], col * raster_size);
	    /* bottom left in window */
	    br = G_incr_void_ptr(buffer[bottom], (col + 1) * raster_size);
	    /* bottom right in window */
	    draw_boundaries();
	    if (k == 3)
		k = 0;
	}
	row++;
    }

    return 0;
}				/* draw_outlines */
Exemple #2
0
void Button::draw_focus()
{
	STACKTRACE;
	if (!draw(bmp_focus)) {
		draw_default();
		draw_boundaries(bmp_default);
	}
}
void TriMeshView::draw_mesh()
{
    // These are static so the memory isn't reallocated on every frame
    static vector<float> ndotv, kr;
    static vector<float> sctest_num, sctest_den, shtest_num;
    static vector<float> q1, Dt1q1;
    static vector<vec2> t1;
    compute_perview(ndotv, kr, sctest_num, sctest_den, shtest_num,
            q1, t1, Dt1q1, true);
//    compute_perview(ndotv, kr);

    // Enable antialiased lines
    glEnable(GL_POINT_SMOOTH);
    glEnable(GL_LINE_SMOOTH);
    glEnable(GL_BLEND);
    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

    // 外部轮廓,仅使用ndotv,不做其它测试
    if (isDrawSilhouette)
        draw_silhouette(ndotv);

    // The mesh itself, possibly colored and/or lit
    glDisable(GL_BLEND);
    draw_base_mesh();
    glEnable(GL_BLEND);

    if(isDrawRVFaces)
        rv_fLines.drawFaces(triMesh, vec4(0.0f, 0.8f, 0.0f, 1.0f));
    if(isDrawRVLines)
        rv_fLines.drawLines();

    if(isDrawOCFaces)
        c_fLines.drawFaces(triMesh, vec4(0.7f, 0.5f, 0.5f, 1.0f));
    if(isDrawOCLines)
        c_fLines.drawLines();

    if(isDrawApparentRidges)
        draw_apparent_ridges(ndotv, q1, t1, Dt1q1, ar_thresh / sqr(feature_size));

    if(isDrawOccludingContours)
        draw_occluding_contours(ndotv, kr);

    if(isDrawSuggestiveContours)
        draw_suggestive_contours(ndotv, kr, sctest_num, sctest_den);

    if(isDrawRidges)
        draw_ridges(ndotv, rv_thresh / feature_size);
    if(isDrawValleys)
        draw_valleys(ndotv, rv_thresh / feature_size);

    if(isDrawBoundaries)
        draw_boundaries(false);

    glDisable(GL_LINE_SMOOTH);
    glDisable(GL_POINT_SMOOTH);
    glDisable(GL_BLEND);
    glDepthMask(GL_TRUE);
}