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** uses libgsf to draw wire frame surfaces
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int Nquick_draw_cmd(Nv_data * dc, Tcl_Interp * interp)
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int *surf_list, *vol_list;
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GS_set_draw(GSD_BACK);
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GS_clear(dc->BGcolor);
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surf_list = GS_get_surf_list(&max);
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for (i = 0; i < max; i++) {
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if (check_blank(interp, surf_list[i]) == 0) {
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GS_draw_wire(surf_list[i]);
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vol_list = GVL_get_vol_list(&max);
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for (i = 0; i < max; i++) {
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if (check_blank(interp, vol_list[i]) == 0) {
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GVL_draw_wire(vol_list[i]);
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/*** ACS_MODIFY flythrough ONE LINE ***************/
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flythrough_postdraw_cb();