Index: act_geo.c
===================================================================
--- act_geo.c	(nonexistent)
+++ act_geo.c	(revision 27574)
@@ -0,0 +1,84 @@
+/*
+ *                            COPYRIGHT
+ *
+ *  pcb-rnd, interactive printed circuit board design
+ *  Copyright (C) 2019 Tibor 'Igor2' Palinkas
+ *
+ *  This module, dialogs, was written and is Copyright (C) 2017 by Tibor Palinkas
+ *  this module is also subject to the GNU GPL as described below
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ *  Contact:
+ *    Project page: http://repo.hu/projects/pcb-rnd
+ *    lead developer: http://repo.hu/projects/pcb-rnd/contact.html
+ *    mailing list: pcb-rnd (at) list.repo.hu (send "subscribe")
+ */
+
+#include "config.h"
+
+#include "board.h"
+#include "actions.h"
+#include "plugins.h"
+#include "misc_util.h"
+#include "idpath.h"
+#include "search.h"
+
+static const char pcb_acts_IsPointOnLine[] = "IsPointOnLine(x, y, r, idpath)";
+static const char pcb_acth_IsPointOnLine[] = "Returns 1 if point x;y with radius r is on the line addressed by idpath, 0 else.";
+static fgw_error_t pcb_act_IsPointOnLine(fgw_arg_t *res, int argc, fgw_arg_t *argv)
+{
+	pcb_coord_t x, y, r;
+	pcb_idpath_t *idp;
+	pcb_any_obj_t *obj;
+
+	PCB_ACT_CONVARG(1, FGW_COORD, IsPointOnLine, x = fgw_coord(&argv[1]));
+	PCB_ACT_CONVARG(2, FGW_COORD, IsPointOnLine, y = fgw_coord(&argv[2]));
+	PCB_ACT_CONVARG(3, FGW_COORD, IsPointOnLine, r = fgw_coord(&argv[3]));
+	PCB_ACT_CONVARG(4, FGW_IDPATH, IsPointOnLine, idp = fgw_idpath(&argv[4]));
+	if ((idp == NULL) || !fgw_ptr_in_domain(&pcb_fgw, &argv[4], PCB_PTR_DOMAIN_IDPATH))
+		return FGW_ERR_PTR_DOMAIN;
+	obj = pcb_idpath2obj(PCB, idp);
+	if ((obj == NULL) || (obj->type != PCB_OBJ_LINE))
+		return FGW_ERR_ARG_CONV;
+
+	PCB_ACT_IRES(pcb_is_point_on_line(x, y, r, (pcb_line_t *)obj));
+	return 0;
+}
+
+
+static const char pcb_acts_IsPointOnArc[] = "IsPointOnArc(x, y, r, idpath)";
+static const char pcb_acth_IsPointOnArc[] = "Returns 1 if point x;y with radius r is on the arc addressed by idpath, 0 else.";
+static fgw_error_t pcb_act_IsPointOnArc(fgw_arg_t *res, int argc, fgw_arg_t *argv)
+{
+	pcb_coord_t x, y, r;
+	pcb_idpath_t *idp;
+	pcb_any_obj_t *obj;
+
+	PCB_ACT_CONVARG(1, FGW_COORD, IsPointOnArc, x = fgw_coord(&argv[1]));
+	PCB_ACT_CONVARG(2, FGW_COORD, IsPointOnArc, y = fgw_coord(&argv[2]));
+	PCB_ACT_CONVARG(3, FGW_COORD, IsPointOnArc, r = fgw_coord(&argv[3]));
+	PCB_ACT_CONVARG(4, FGW_IDPATH, IsPointOnArc, idp = fgw_idpath(&argv[4]));
+	if ((idp == NULL) || !fgw_ptr_in_domain(&pcb_fgw, &argv[4], PCB_PTR_DOMAIN_IDPATH))
+		return FGW_ERR_PTR_DOMAIN;
+	obj = pcb_idpath2obj(PCB, idp);
+	if ((obj == NULL) || (obj->type != PCB_OBJ_ARC))
+		return FGW_ERR_ARG_CONV;
+
+	PCB_ACT_IRES(pcb_is_point_on_arc(x, y, r, (pcb_line_t *)obj));
+	return 0;
+}
+
+
Index: act_read.c
===================================================================
--- act_read.c	(revision 27573)
+++ act_read.c	(revision 27574)
@@ -40,6 +40,7 @@
 #include "keywords_sphash.h"
 
 #include "act_idpath.c"
+#include "act_geo.c"
 
 
 static const char pcb_acts_GetValue[] = "GetValue(input, units, relative, default_unit)";
@@ -86,7 +87,10 @@
 	{"GetValue", pcb_act_GetValue, pcb_acth_GetValue, pcb_acts_GetValue},
 	{"IDPList", pcb_act_IDPList, pcb_acth_IDPList, pcb_acts_IDPList},
 	{"IDP", pcb_act_IDP, pcb_acth_IDP, pcb_acts_IDP},
-	{"GetParentData", pcb_act_GetParentData, pcb_acth_GetParentData, pcb_acts_GetParentData}
+	{"GetParentData", pcb_act_GetParentData, pcb_acth_GetParentData, pcb_acts_GetParentData},
+
+	{"IsPointOnArc", pcb_act_IsPointOnArc, pcb_acth_IsPointOnArc, pcb_acts_IsPointOnArc},
+	{"IsPointOnLine", pcb_act_IsPointOnLine, pcb_acth_IsPointOnLine, pcb_acts_IsPointOnLine}
 };
 
 static const char *act_read_cookie = "act_read";