nviz_cmd: forgot to add cplane.c

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@46828 15284696-431f-4ddb-bdfa-cd5b030d7da7

visualization/nviz2/cmd/cplane.c

@@ -0,0 +1,72 @@
+/*!
+   \file cplane.c
+
+   \brief Cutting plane subroutine
+
+   (C) 2011 by the GRASS Development Team
+
+   This program is free software under the GNU General Public
+   License (>=v2). Read the file COPYING that comes with GRASS
+   for details.
+
+   \author Anna Kratochvilova <kratochanna seznam.cz> (Google SoC 2010/2011)
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <grass/glocale.h>
+
+#include "local_proto.h"
+
+/*!
+   \brief Draw cutting planes and set their attributes
+
+   \param params module parameters
+   \param data nviz data
+ */
+void draw_cplane(const struct GParams *params, nv_data * data)
+{
+    int i, id, ncplanes;
+    float trans_x, trans_y, trans_z;
+    float rot_x, rot_y, rot_z;
+    int fence;
+
+    ncplanes = opt_get_num_answers(params->cplane);
+    for (i = 0; i < ncplanes; i++) {
+	id = atoi(params->cplane->answers[i]);
+
+	if (id < 0 || id > Nviz_num_cplanes(data))
+	    G_fatal_error(_("Cutting plane number <%d> not found"), id);
+
+	Nviz_on_cplane(data, id);
+
+	trans_x = atof(params->cplane_pos->answers[i * 3 + 0]);
+	trans_y = atof(params->cplane_pos->answers[i * 3 + 1]);
+	trans_z = atof(params->cplane_pos->answers[i * 3 + 2]);
+	Nviz_set_cplane_translation(data, id, trans_x, trans_y, trans_z);
+
+	rot_x = 0;
+	rot_y = atof(params->cplane_tilt->answers[i]);
+	rot_z = atof(params->cplane_rot->answers[i]);
+	Nviz_set_cplane_rotation(data, id, rot_x, rot_y, rot_z);
+    }
+
+    const char *shading = params->cplane_shading->answers[0];
+
+    if (strcmp(shading, "clear") == 0)
+	fence = 0;
+    else if (strcmp(shading, "top") == 0)
+	fence = 1;
+    else if (strcmp(shading, "bottom") == 0)
+	fence = 2;
+    else if (strcmp(shading, "blend") == 0)
+	fence = 3;
+    else if (strcmp(shading, "shaded") == 0)
+	fence = 4;
+    else
+	fence = 0;
+    Nviz_set_fence_color(data, fence);
+
+    return;
+}