test_ptarray_locate_point()

static void test_ptarray_locate_point ( void  )

static

Definition at line 217 of file cu_ptarray.c.

References getPoint4d(), lwgeom_as_lwline(), lwgeom_from_text(), lwline_free(), POINT4D::m, LWLINE::points, ptarray_locate_point(), POINT4D::x, and POINT4D::y.

Referenced by ptarray_suite_setup().

{
        LWLINE *line;
        double loc, dist;
        POINT4D p, l;

        line = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(0 3,20 4)"));

        p = getPoint4d(line->points, 0);
        loc = ptarray_locate_point(line->points, &p, &dist, &l);
        CU_ASSERT_EQUAL(loc, 0);
        CU_ASSERT_EQUAL(dist, 0.0);

        p = getPoint4d(line->points, 1);
        loc = ptarray_locate_point(line->points, &p, &dist, &l);
        CU_ASSERT_EQUAL(loc, 1);
        CU_ASSERT_EQUAL(dist, 0.0);

        p.x = 21; p.y = 4;
        loc = ptarray_locate_point(line->points, &p, &dist, NULL);
        CU_ASSERT_EQUAL(loc, 1);
        CU_ASSERT_EQUAL(dist, 1.0);

        p.x = 0; p.y = 2;
        loc = ptarray_locate_point(line->points, &p, &dist, &l);
        CU_ASSERT_EQUAL(loc, 0);
        CU_ASSERT_EQUAL(dist, 1.0);

        lwline_free(line);
        line = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(0 0,20 0,40 0)"));

        p.x = 20; p.y = 0;
        loc = ptarray_locate_point(line->points, &p, &dist, &l);
        CU_ASSERT_EQUAL(loc, 0.5);
        CU_ASSERT_EQUAL(dist, 0.0);

        lwline_free(line);
        line = lwgeom_as_lwline(lwgeom_from_text("LINESTRING(-40 0,0 0,20 0,40 0)"));

        p.x = 20; p.y = 0;
        loc = ptarray_locate_point(line->points, &p, &dist, &l);
        CU_ASSERT_EQUAL(loc, 0.75);
        CU_ASSERT_EQUAL(dist, 0.0);

        lwline_free(line);
        line = lwgeom_as_lwline(lwgeom_from_text("LINESTRING M (0 0 0, 10 0 20)"));

        p.x = 5; p.y = 0;
        loc = ptarray_locate_point(line->points, &p, &dist, &l);
        CU_ASSERT_EQUAL(loc, 0.5);
        CU_ASSERT_EQUAL(dist, 0.0);
        CU_ASSERT_EQUAL(l.m, 10.0);

        lwline_free(line);

}

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