#endif
static VikLayerParamScale param_scales[] = {
+ { 1, 10000, 10, 1 },
{ 1, 10000, 10, 1 },
{ 1, 10, 1, 0 },
};
{ "files", VIK_LAYER_PARAM_STRING_LIST, VIK_LAYER_GROUP_NONE, "DEM Files:", VIK_LAYER_WIDGET_FILELIST },
{ "source", VIK_LAYER_PARAM_UINT, VIK_LAYER_GROUP_NONE, "Download Source:", VIK_LAYER_WIDGET_RADIOGROUP_STATIC, params_source, NULL },
{ "color", VIK_LAYER_PARAM_STRING, VIK_LAYER_GROUP_NONE, "Color:", VIK_LAYER_WIDGET_ENTRY },
+ { "min_elev", VIK_LAYER_PARAM_DOUBLE, VIK_LAYER_GROUP_NONE, "Min Elev:", VIK_LAYER_WIDGET_SPINBUTTON, param_scales + 0 },
{ "max_elev", VIK_LAYER_PARAM_DOUBLE, VIK_LAYER_GROUP_NONE, "Max Elev:", VIK_LAYER_WIDGET_SPINBUTTON, param_scales + 0 },
{ "line_thickness", VIK_LAYER_PARAM_UINT, VIK_LAYER_GROUP_NONE, "Line Thickness:", VIK_LAYER_WIDGET_SPINBUTTON, param_scales + 1 },
};
-enum { PARAM_FILES=0, PARAM_SOURCE, PARAM_COLOR, PARAM_MAX_ELEV, PARAM_LINE_THICKNESS, NUM_PARAMS };
+enum { PARAM_FILES=0, PARAM_SOURCE, PARAM_COLOR, PARAM_MIN_ELEV, PARAM_MAX_ELEV, PARAM_LINE_THICKNESS, NUM_PARAMS };
static gpointer dem_layer_download_create ( VikWindow *vw, VikViewport *vvp);
static gboolean dem_layer_download_release ( VikDEMLayer *vdl, GdkEventButton *event, VikViewport *vvp );
GdkGC *gc;
GdkGC **gcs;
GList *files;
+ gdouble min_elev;
gdouble max_elev;
guint8 line_thickness;
gchar *color;
{
case PARAM_COLOR: if ( vdl->color ) g_free ( vdl->color ); vdl->color = g_strdup ( data.s ); break;
case PARAM_SOURCE: vdl->source = data.u; break;
+ case PARAM_MIN_ELEV: vdl->min_elev = data.d; break;
case PARAM_MAX_ELEV: vdl->max_elev = data.d; break;
case PARAM_LINE_THICKNESS: if ( data.u >= 1 && data.u <= 15 ) vdl->line_thickness = data.u; break;
case PARAM_FILES: a_dems_load_list ( &(data.sl) ); a_dems_list_free ( vdl->files ); vdl->files = data.sl; break;
case PARAM_FILES: rv.sl = vdl->files; break;
case PARAM_SOURCE: rv.u = vdl->source; break;
case PARAM_COLOR: rv.s = vdl->color ? vdl->color : ""; break;
+ case PARAM_MIN_ELEV: rv.d = vdl->min_elev; break;
case PARAM_MAX_ELEV: rv.d = vdl->max_elev; break;
case PARAM_LINE_THICKNESS: rv.i = vdl->line_thickness; break;
}
vdl->gcs = g_malloc(sizeof(GdkGC *)*DEM_N_COLORS);
/* make new gcs only if we need it (copy layer -> use old) */
+ vdl->min_elev = 0.0;
vdl->max_elev = 1000.0;
vdl->source = DEM_SOURCE_SRTM;
vdl->line_thickness = 3;
vik_dem_east_north_to_xy ( dem, start_lon_as, start_lat_as, &start_x, &start_y );
+ /* verify sane elev interval */
+ if ( vdl->max_elev <= vdl->min_elev )
+ vdl->max_elev = vdl->min_elev + 1;
+
for ( x=start_x, counter.lon = start_lon; counter.lon <= end_lon; counter.lon += escale_deg * skip_factor, x += skip_factor ) {
if ( x > 0 && x < dem->n_columns ) {
column = g_ptr_array_index ( dem->columns, x );
if ( y > column->n_points )
break;
elev = column->points[y];
- if ( elev > vdl->max_elev ) elev=vdl->max_elev;
+
+ if ( elev != VIK_DEM_INVALID_ELEVATION && elev < vdl->min_elev )
+ elev=vdl->min_elev;
+ if ( elev != VIK_DEM_INVALID_ELEVATION && elev > vdl->max_elev )
+ elev=vdl->max_elev;
+
+
{
gint a, b;
else if ( elev <= 0 )
vik_viewport_draw_rectangle(vp, vdl->gcs[0], TRUE, a-2, b-2, 4, 4 );
else
- vik_viewport_draw_rectangle(vp, vdl->gcs[(gint)floor(elev/vdl->max_elev*(DEM_N_COLORS-2))+1], TRUE, a-2, b-2, 4, 4 );
+ vik_viewport_draw_rectangle(vp, vdl->gcs[(gint)floor((elev - vdl->min_elev)/(vdl->max_elev - vdl->min_elev)*(DEM_N_COLORS-2))+1], TRUE, a-2, b-2, 4, 4 );
}
} /* for y= */
}
if ( y > column->n_points )
continue;
elev = column->points[y];
- if ( elev > vdl->max_elev ) elev=vdl->max_elev;
+ if ( elev != VIK_DEM_INVALID_ELEVATION && elev < vdl->min_elev )
+ elev=vdl->min_elev;
+ if ( elev != VIK_DEM_INVALID_ELEVATION && elev > vdl->max_elev )
+ elev=vdl->max_elev;
+
{
gint a, b;
vik_coord_load_from_utm(&tmp, vik_viewport_get_coord_mode(vp), &counter);
else if ( elev <= 0 )
vik_viewport_draw_rectangle(vp, vdl->gcs[0], TRUE, a-2, b-2, 4, 4 );
else
- vik_viewport_draw_rectangle(vp, vdl->gcs[(gint)floor(elev/vdl->max_elev*(DEM_N_COLORS-2))+1], TRUE, a-2, b-2, 4, 4 );
+ vik_viewport_draw_rectangle(vp, vdl->gcs[(gint)floor((elev - vdl->min_elev)/(vdl->max_elev - vdl->min_elev)*(DEM_N_COLORS-2))+1], TRUE, a-2, b-2, 4, 4 );
}
} /* for y= */
}