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pcb-gcode.ulp
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pcb-gcode.ulp
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//
// Generate g-code for milling PC boards.
//
// Copyright 2004-2014 by John Johnson Software, LLC.
// See readme.html for copyright information.
//
// See pcb-defaults.h, gcode-defaults.h and pcb-machine.h for options.
//
#include "source/pcb-gcode.h"
#include "source/pcb-gcode-stack.h"
#include "settings/pcb-defaults.h"
#include "settings/pcb-machine.h"
#include "settings/gcode-defaults.h"
#include "settings/pcb-gcode-options.h"
#include "settings/user-gcode.h"
#include "source/math.h"
#include "source/drill.h"
#include "source/library.h"
#include "source/pcb-file-utils.h"
#include "source/filename_subs.h"
#usage "<center><b>pcb-gcode™ Gcode Generation Utility</b><br>"
" Version 3.6.6<p>"
"Copyright© 2003 - 2022 by John Johnson Software, LLC<br>"
"All Rights Reserved</center>"
"<p>"
"Join the Groups pcb-gcode group "
"<a href=https://groups.io/g/pcbgcode>https://groups.io/g/pcbgcode</a>"
"<br>or contact the author at <a href=mailto:[email protected]>[email protected]</a>"
"<br>"
"<hr>"
"This program generates g-code for 'mechanically etching' PC boards. "
"Using a CNC router or milling machine, you can make PC boards without using etching chemicals.<p />"
"It will create files for the outlines of tracks, drilling holes, and milling cutouts in the board."
"<br>See the <a href=file://readme.html>readme.html</a> file for more info.<p>"
"There are <em>many</em> options in the setup program.<br />"
"To setup which files are generated, and how, use the following command:<br>"
"<code>run pcb-gcode --setup</code><p>"
"<p/>"
"If you want to produce a set of files without changing options, you can run pcb-gcode directly."
"Usage is as follows:<br>"
"<code>run pcb-gcode [option] [file]</code><br>"
"Where:\n"
"<table>"
"<tr><td><em>Option</em></td><td><em>Function</em></td></tr>"
"<tr><td><code>--help</code></td><td>Show this help screen</td></tr>"
"<tr><td><code>--setup</code></td><td>Run the setup / configuration program</td></tr>"
"<tr><td><code>file</code></td><td>Is the optional root filename.\n</td></tr>"
"<tr><td></td><td>If not given, the board name is used as the root filename.</td></tr>"
"</table>"
"</td></tr>"
"</table>"
"<hr>"
g_tool_size = TOOL_SIZE;
// Filename to output to.
string m_file_name = "";
// Which side we're currently working on.
g_side = TOP;
// Tool currently being used.
int m_current_tool = 0;
// Amount to isolate traces.
real m_isolate = 0.0;
// Used to pass the pass info to the next pass of the program.
int m_pass_num;
// The layer being worked on.
int m_layer;
// Used to create command strings.
string g_cmd;
string g_cmd_temp;
////////// mlmSolutions added 29 Jan 14
real m_v_x[], m_v_y[], m_v_rad[];
real m_v_xc[], m_v_yc[]; // JJ
real m_tool_x, m_tool_y, m_vx1, m_vy1, m_vx2, m_vy2, m_rad;
int m_v_index[], m_v_prev[], m_v_next[], m_v_step[], m_v_cont[], m_v_curve[], m_c_start[], m_c_end[];
int m_contours, m_cw, m_v_n=1, m_fwd, m_dist, m_dist_min, m_dist_min_index;
int m_wire_start, m_z_up, m_step, m_i, m_j, m_cont, m_border_contour;
//////////
//
// Save the maximum and minimum coordinates.
//
// Params:
// x, y Coordinates to be tested, and possibly saved as min or max values.
// Return:
// none
//
real m_max_x;
real m_max_y;
real m_min_x;
real m_min_y;
void save_extents(real x, real y)
{
m_max_x = max(m_max_x, x);
m_max_y = max(m_max_y, y);
m_min_x = min(m_min_x, x);
m_min_y = min(m_min_y, y);
}
//
// Open the platform-specific previewer.
//
// Params: none
// Return: none
//
void preview()
{
if (SHOW_PREVIEW) {
switch(get_os()) {
case OS_MACOSX:
system(g_path + "/viewer/application.macosx/viewer.app/Contents/MacOS/JavaApplicationStub");
break;
case OS_LINUX:
system(g_path + "/source/viewer.linux.sh");
break;
case OS_WINDOWS:
system(g_path + "/viewer/application.windows/viewer.exe");
dlgMessageBox("Close this window when you have finished with the preview");
break;
default:
Fatal("Oops!", "Can't figure out which OS you have.");
}
}
}
//
// Determine the next phase, and set g_phase accordingly.
//
// Params: none
// Return: none
//
void next_phase(void)
{
if (g_phase == PH_TOP_OUT_GEN && GENERATE_TOP_OUTLINES != YES) {
g_phase += 2;
return;
}
if (g_phase == PH_BOTTOM_OUT_GEN && GENERATE_BOTTOM_OUTLINES != YES) {
g_phase += 2;
return;
}
if (g_phase == PH_TOP_OUT_WRITE || g_phase == PH_BOTTOM_OUT_WRITE) {
if (m_isolate < ISO_MAX && !SINGLE_PASS) {
m_isolate += ISO_STEP;
m_pass_num++;
g_phase--;
}
else {
m_isolate = ISO_MIN;
m_pass_num = 0;
g_phase++;
preview();
}
}
else {
g_phase++;
}
}
//////////////////////////////////////////////////
//
// Hole drilling routines.
//
//////////////////////////////////////////////////
//
// Add a drill hole entry (size, x, y) to the stack.
//
// Params:
// Size Drill size.
// req_size Desired drill hole size. (May be subbed.)
// x x coordinate.
// y y coordinate.
// Returns:
// none
// Changes:
// the stack
//
void add_hole(int req_size, int x, int y)
{
string tempstr;
int drill_size;
drill_size = get_drill_for(req_size);
sprintf(tempstr, "%06d\t%06d\t%06d", drill_size, x, y);
stack_push(tempstr);
}
//
// Return the distance between two points.
//
// Params:
// x1, y1, x2, y2 coordinates for two points.
// Return:
// the distance between the points.
//
real distance(real x1, real y1, real x2, real y2) {
return (sqrt((x1-x2)*(x1-x2) + (y1-y2)*(y1-y2)));
}
//
// Sorts a stack of drills in g_stack by distance from last hole.
//
// Params: none
// Return: none
// Changes:
// the stack
//
void pythagorean_sort() {
real drill_size1;
real drill_x1;
real drill_y1;
real drill_size2;
real drill_x2;
real drill_y2;
real drill_size3;
real drill_x3;
real drill_y3;
int i;
int j;
string drill_args1[];
string drill_args2[];
string drill_args3[];
string tmp;
real before_distance;
real after_distance;
// Sort by size, x, then y
stack_sort();
for (i = 0; i <= stack_count(); i++) {
strsplit(drill_args1, stack_elem(i), '\t');
drill_size1 = internals_to_user(my_strtol(drill_args1[DRILL_SIZE]));
drill_x1 = scale_x(my_strtol(drill_args1[DRILL_X]));
drill_y1 = scale_y(my_strtol(drill_args1[DRILL_Y]));
j = i + 2;
while (j <= stack_count()) {
strsplit(drill_args2, stack_elem(i+1), '\t');
drill_size2 = internals_to_user(my_strtol(drill_args2[DRILL_SIZE]));
drill_x2 = scale_x(my_strtol(drill_args2[DRILL_X]));
drill_y2 = scale_y(my_strtol(drill_args2[DRILL_Y]));
strsplit(drill_args3, stack_elem(j), '\t');
drill_size3 = internals_to_user(my_strtol(drill_args3[DRILL_SIZE]));
drill_x3 = scale_x(my_strtol(drill_args3[DRILL_X]));
drill_y3 = scale_y(my_strtol(drill_args3[DRILL_Y]));
if (drill_size2 != drill_size1 || drill_size3 != drill_size1)
break;
if (distance(drill_x1, drill_y1, drill_x3, drill_y3) < distance(drill_x1, drill_y1, drill_x2, drill_y2)) {
tmp = stack_elem(j);
stack_put(j, stack_elem(i+1));
stack_put(i+1, tmp);
j = i + 1;
}
j++;
}
}
}
/*
* Create a drill file for the desired side.
*
* Params:
* which_side Side to produce the file for.
* Returns:
* none
* Changes:
* m_current_tool
* g_side
*/
void drill(int which_side)
{
int num_lines;
int i;
real last_size;
string drill_args[];
real drill_size_mm;
real drill_size_inch;
real drill_size;
real drill_x;
real drill_y;
int drill_tool_num;
m_current_tool = 0;
g_side = which_side;
//
// Build a stack with all the holes.
//
board(B) {
B.holes(H) add_hole(H.drill, H.x, H.y);
B.signals(S) S.vias(V) add_hole(V.drill, V.x, V.y);
B.elements(E) {
E.package.contacts(C) {
if (C.pad) {
add_hole(C.pad.drill, C.pad.x, C.pad.y);
}
}
E.package.holes(H) add_hole(H.drill, H.x, H.y);
}
// B.elements
// Sorts the drills by size, then distance from previous hole.
pythagorean_sort();
//
// Create the drill g-code file.
//
last_size = -1;
output(get_filename(), FILEMODE_WRITE_TEXT) {
output_file_preamble();
//
// Create a tool table at the beginning of the file.
//
out(TOOL_CHANGE_TABLE_HEADER);
for (i=stack_fwd_iter(); i != END_OF_STACK; i=stack_fwd_next()) {
if (i==END_OF_STACK) break;
strsplit(drill_args, stack_elem(i), '\t');
drill_size_inch = u2inch(my_strtol(drill_args[DRILL_SIZE]));
drill_size_mm = u2mm(my_strtol(drill_args[DRILL_SIZE]));
drill_size = my_strtol(drill_args[DRILL_SIZE]);
if (drill_size_mm == 0.0) continue;
if (drill_size != last_size) {
++m_current_tool;
drill_tool_num = get_tool_num_for(my_strtol(drill_args[DRILL_SIZE]), m_current_tool);
out(TOOL_CHANGE_TABLE_FORMAT(drill_tool_num,
drill_size_mm, drill_size_inch,
g_mins[drill_tool_num], g_maxs[drill_tool_num],
g_drill_sub_cnt[drill_tool_num]));
}
last_size = drill_size;
}
// for
begin_gcode(SPINDLE_DRILL_RPM);
//
// Generate drill code.
//
m_current_tool = 0;
for (i=stack_fwd_iter(); i != END_OF_STACK; i=stack_fwd_next()) {
strsplit(drill_args, stack_elem(i), '\t');
drill_size = internals_to_user(my_strtol(drill_args[DRILL_SIZE]));
drill_x = scale_x(my_strtol(drill_args[DRILL_X]));
drill_y = scale_y(my_strtol(drill_args[DRILL_Y]));
save_extents(drill_x, drill_y);
if (drill_size == 0.0) continue;
//
// Check to see if the drill size has changed,
// if so, output a tool change and optional zero code.
//
if (drill_size == last_size) {
output_drill_hole(drill_x, drill_y, DRILL_DEPTH);
}
else {
m_current_tool++;
// Tool change routine
output_tool_change_begin();
out(SPINDLE_OFF);
rz(TOOL_CHANGE_POS_Z);
rxy(TOOL_CHANGE_POS_X, TOOL_CHANGE_POS_Y);
out(fir(TOOL_CHANGE, get_tool_num_for(my_strtol(drill_args[DRILL_SIZE]), m_current_tool), drill_size));
output_tool_changed();
// Output zero steps and a pause
if (DO_TOOL_CHANGE_WITH_ZERO_STEP == YES) {
output_tool_zero_begin();
fzr(0.000, FEED_RATE_DRILL_Z);
out(OPERATOR_PAUSE + EOL);
output_tool_zero_end();
}
rz(DEFAULT_Z_UP);
out(fr(SPINDLE_ON, SPINDLE_ON_TIME));
output_tool_change_end();
output_drill_first_hole(drill_x, drill_y, DRILL_DEPTH);
last_size = drill_size;
}
// if drill_size != last_size
}
// for
output_file_postamble();
// End of file
// change back to tool 1
out(fi(TOOL_CODE + EOL, 1));
end_gcode();
}
// output
}
// Board
}
// drill
// holds line segments generated for the previewer
string m_lines;
//
// Format the coordinates of two points to be used by the previewer.
//
// Params:
// x1, y1, x2, y2 Two points.
// Return:
// Coordinates formatted for the previewer.
//
string LINE_SEP = "\n";
string COORD_SEP = ",";
string COORD_FMT = "%8.5f";
string coords(real x1, real y1, real x2, real y2)
{
return frrrr(COORD_FMT + COORD_SEP + COORD_FMT + COORD_SEP +
COORD_FMT + COORD_SEP + COORD_FMT + LINE_SEP, x1, y1, x2, y2);
}
//
// Generates gcode for spot drilling and previewing holes.
//
// Params:
// drill_size Size of the hole to drill.
// x, y Location of the hole.
// Return: none
// Changes:
// m_first_spot_drill
// m_lines
// g_side
//
int m_first_spot_drill = YES;
void spot_drill_hole(int drill_size, int x, int y)
{
real drill_x;
real drill_y;
real offset;
drill_x = scale_x(x);
drill_y = scale_y(y);
save_extents(drill_x, drill_y);
if (SPOT_DRILL == YES) {
if (m_first_spot_drill) {
output_drill_first_hole(drill_x, drill_y, SPOT_DRILL_DEPTH);
m_first_spot_drill = NO;
}
else {
output_drill_hole(drill_x, drill_y, SPOT_DRILL_DEPTH);
}
}
offset = internals_to_user(get_drill_for(drill_size)) / 2;
//
// Generate X's for drill preview if drills are turned on for this side.
//
if ((g_side == TOP && GENERATE_TOP_DRILL == YES) ||
(g_side == BOTTOM && GENERATE_BOTTOM_DRILL == YES)) {
m_lines += coords(drill_x - offset, drill_y - offset, drill_x + offset, drill_y + offset);
m_lines += coords(drill_x - offset, drill_y + offset, drill_x + offset, drill_y - offset);
}
}
//
// Enumerates all holes and generates spot drills for them.
//
// Params:
// B The board.
// Return: none
// Changes:
// m_lines
//
void spot_drill(UL_BOARD B)
{
m_lines += "# spot drills\n";
B.holes(H) spot_drill_hole(H.drill, H.x, H.y);
B.signals(S) S.vias(V) spot_drill_hole(V.drill, V.x, V.y);
B.elements(E) {
E.package.contacts(C) {
if (C.pad) {
spot_drill_hole(C.pad.drill, C.pad.x, C.pad.y);
}
}
E.package.holes(H) spot_drill_hole(H.drill, H.x, H.y);
}
// B.elements
}
//
// "Draw" on the output device, i.e. the gcode file.
//
// Params:
// x1,y1 Start of the line.
// x2,y2 End of the line.
// state The state of the line being drawn, start, continue, etc.
// z_down_or_radius Z depth or radius of arc
// fr_xy XY feed rate
// fr_z Z feed rate
// Returns:
// none
// Changes:
// m_lines
// m_arc_begin_x
// m_arc_begin_y
// m_arc_radius
//
real m_arc_begin_x;
real m_arc_begin_y;
real m_arc_radius;
real m_arc_center_x;
real m_arc_center_y;
int pair_count = 0;
int MAX_COORDS_PER_LINE = 4;
void device_draw(int x1, int y1, int x2, int y2, int state, real z_down_or_radius, real fr_xy, real fr_z)
{
real rx1, ry1, rx2, ry2;
string str;
real i_coord;
real j_coord;
rx1 = scale_x(x1);
ry1 = scale_y(y1);
rx2 = scale_x(x2);
ry2 = scale_y(y2);
save_extents(rx1, ry1);
save_extents(rx2, ry2);
// Output g-code based on the current state.
switch(state) {
// Start of a new line.
case ST_START_LINE:
user_track_begin(rx1, ry1, rx2, ry2);
m_lines += coords(rx1, ry1, rx2, ry2);
rz(DEFAULT_Z_UP);
rxy(rx1, ry1);
fzr(z_down_or_radius, fr_z);
fxyr(rx2, ry2, fr_xy);
pair_count = 0;
break;
// A fill line.
case ST_FILL:
Fatal("Programmer Error", "The Fill functions are no longer supported.");
break;
// Continue a line.
// End a line.
case ST_CONTINUE_LINE:
user_track_continue(rx1, ry1, rx2, ry2);
m_lines += coords(rx1, ry1, rx2, ry2);
if (COMPACT_GCODE == YES) {
if (pair_count == 0) {
fxy(rx2, ry2);
}
else {
xy(rx2, ry2);
}
pair_count++;
}
else {
fxy(rx2, ry2);
}
break;
case ST_END_LINE:
user_track_end(rx1, ry1, rx2, ry2);
m_lines += coords(rx1, ry1, rx2, ry2);
if (COMPACT_GCODE == YES) {
xy(rx2, ry2);
pair_count = 0;
}
else {
fxy(rx2, ry2);
}
break;
// Drill a hole.
// todo is this valid?
case ST_DRILL:
printf("cause an error if used %d");
// printf("drill (%f, %f)\n", rx2, ry2);
break;
// Create an arc.
case ST_ARC_BEGIN:
user_arc_begin(rx1, ry1, rx2, ry2);
m_arc_begin_x = rx1;
m_arc_begin_y = ry1;
m_arc_radius = internals_to_user(z_down_or_radius);
break;
// Finish an arc.
case ST_ARC_END:
user_arc_end(rx1, ry1, rx2, ry2);
real cx = rx2;
real cy = ry2;
real end_x = rx1;
real end_y = ry1;
rz(DEFAULT_Z_UP);
rxy(end_x, end_y);
fzr(z_down_or_radius, FEED_RATE_MILL_Z);
if (g_side == TOP || MIRROR_BOTTOM == YES) {
out(frrrr(ARC_CLOCK, m_arc_begin_x, m_arc_begin_y, m_arc_radius, fr_xy));
}
else {
out(frrrr(ARC_CCLOCK, m_arc_begin_x, m_arc_begin_y, m_arc_radius, fr_xy));
}
break;
////////// mlmSolutions 5 Feb 14
case ST_ARC_CENTER:
sprintf(str, "ARC CENTER: rx1=%f, ry1=%f, rx2=%f, ry2=%f", rx1, ry1, rx2, ry2);
comm(str);
m_arc_center_x = rx1;
m_arc_center_y = ry1;
break;
case ST_ARC:
sprintf(str, "ARC: rx1=%f, ry1=%f, rx2=%f, ry2=%f, cx=%f, cy=%f", rx1, ry1, rx2, ry2, m_arc_center_x, m_arc_center_y);
comm(str);
i_coord = m_arc_center_x - rx1;
j_coord = m_arc_center_y - ry1;
if (m_z_up){
rz(DEFAULT_Z_UP);
rxy(rx1, ry1);
fzr(z_down_or_radius, fr_z);
}
if (((g_side == TOP) && m_cw) || ((g_side != TOP) && !m_cw)) str = ARC_CLOCK; else str = ARC_CCLOCK;
out(frrrr(str, rx2, ry2, internals_to_user(m_rad), fr_xy));
break;
//////////
}
// switch(state)
}
// device_draw
//
// Generate polygons for outline or fill.
// This creates a series of commands for Eagle and puts them
// in g_cmd to be passed when we exit from this phase of pcb-gcode.
//
// Params:
// which_side The side to operate on.
// Return:
// none
// Changes:
// m_layer
// g_cmd
//
void generate_outlines(int which_side)
{
string cmd_temp = "";
g_cmd = "";
if (which_side == TOP)
m_layer = TOP_LAYER;
else
m_layer = BOTTOM_LAYER;
board(B) {
real f = BORDER_SIZE;
real x1 = internals_to_user(B.area.x1) - f;
real y1 = internals_to_user(B.area.y1) - f;
real x2 = internals_to_user(B.area.x2) + f;
real y2 = internals_to_user(B.area.y2) + f;
B.signals(S) {
if (S.name == OUTLINES_SIGNAL_NAME) {
sprintf(cmd_temp, "delete (%f %f) (%f %f);\n",
x1, y1, x2, y2);
g_cmd = g_cmd + cmd_temp;
}
}
sprintf(cmd_temp, "grid %s;\n"
"change isolate %f;\n"
"change rank 6;\n"
"change pour solid;\n"
"change width %f;\n"
"change orphans on;\n"
"layer %d;\n"
"polygon %s %f (%f %f) (%f %f) (%f %f) (%f %f) (%f %f);\n"
"ratsnest;\n"
,
get_unit_of_measure(),
m_isolate,
g_tool_size,
m_layer,
OUTLINES_SIGNAL_NAME, g_tool_size,
x1, y1, x2, y1, x2, y2, x1, y2, x1, y1
);
g_cmd = g_cmd + cmd_temp;
return;
}
// board(B)
}
// generate_outlines
//
// Output info and lines to a file for the previewer.
//
// Params:
// path Path and filename.
// mode File open mode. May be write or append.
// layer MILL, TEXT, etc.
// Returns:
// none
// Changes:
// none
//
void out_lines(string path, string mode, int layer)
{
output(path, mode) {
if (m_pass_num == 0) {
printf("# board=%s\n", elided_path(get_filename(), 30));
if (layer == MILL) {
printf("# depth=%f\n", MILLING_DEPTH);
}
else if (layer == TEXT) {
printf("# depth=%f\n", TEXT_DEPTH);
}
else {
printf("# tool size=%f\n", g_tool_size);
}
}
printf("# pass=%d\n", m_pass_num + 1);
printf("# preview window width=%d height=%d\n", PREVIEW_WINDOW_WIDTH, PREVIEW_WINDOW_HEIGHT);
printf(m_lines);
}
}
//
// Output preview data to the platform specific files.
//
// Params:
// mode File open mode. May be write or append.
// Returns:
// none
// Changes:
// none
//
void output_preview_data(string mode, int layer)
{
out_lines(g_path + "/viewer/data/optimize_me.txt", mode, layer);
out_lines(g_path + "/viewer/applet/data/optimize_me.txt", mode, layer);
out_lines(g_path + "/viewer/application.macosx/data/optimize_me.txt", mode, layer);
out_lines(g_path + "/viewer/application.linux/data/optimize_me.txt", mode, layer);
out_lines(g_path + "/viewer/application.windows/data/optimize_me.txt", mode, layer);
}
//
// Write text from the Milling layer to a text engraving file.
//
// Params:
// none
// Return:
// none
// Changes:
// g_tool_size
// m_lines
//
void output_text_code()
{
int state;
int old_x, old_y;
board(B) {
output(get_filename(), FILEMODE_WRITE_TEXT) {
user_file_opened(get_filename(), FILEMODE_WRITE_TEXT);
output_file_preamble();
// Initialize the device (i.e. the output file).
begin_gcode(SPINDLE_TEXT_RPM);
// Process all the wires.
B.texts(T) T.wires(W) {
if ((T.mirror && g_side == BOTTOM) || (! T.mirror && g_side == TOP)) {
// If this is a text layer, check if we should continue
// a line, or start a new one.
if (W.layer == TEXT_LAYER) {
if (W.x1 == old_x && W.y1 == old_y) {
state = ST_CONTINUE_LINE;
}
else {
state = ST_START_LINE;
}
// if this is an arc, it is treated specially.
if (W.arc) {
device_draw( W.arc.x1, W.arc.y1, W.arc.x2, W.arc.y2, ST_ARC_BEGIN, W.arc.radius, FEED_RATE_TEXT_XY, FEED_RATE_TEXT_Z);
device_draw( W.arc.x2, W.arc.y2, W.arc.xc, W.arc.yc, ST_ARC_END, TEXT_DEPTH, FEED_RATE_TEXT_XY, FEED_RATE_TEXT_Z);
save_extents(W.x1, W.y1);
save_extents(W.x2, W.y2);
state = ST_START_LINE;
}
else {
// Draw the line (i.e. output the gcode for the line).
device_draw(W.x1, W.y1, W.x2, W.y2, state, TEXT_DEPTH, FEED_RATE_TEXT_XY, FEED_RATE_TEXT_Z);
old_x = W.x2;
old_y = W.y2;
save_extents(W.x1, W.y1);
save_extents(W.x2, W.y2);
}
// if (W.arc)
}
// if (W.layer == TEXT_LAYER)
}
// if (top and bottom check)
}
// T.wires
output_file_postamble();
end_gcode();
user_file_closing();
}
// output
user_file_closed(get_filename(), FILEMODE_WRITE_TEXT);
}
// board
g_tool_size = abs(TEXT_DEPTH);
output_preview_data(FILEMODE_WRITE_TEXT, TEXT);
preview();
m_lines = "";
}
// output_text_code
////////// mlmSolutions added 21 Jan 14
//
// Checks if two vertices match. If yes, return true else return false.
//
// Params:
// X1, Y1, X2, Y2
// Return:
// true or false
// Changes:
// nothing
//
int match(real X1, real Y1, real X2, real Y2)
{
if ((X1 == X2) && (Y1 == Y2)) return true; else return false;
}
//
// Removes a vertex from the linked list.
//
// Params:
// id - the id of the vertex to be removed
// Return:
// nothing
// Changes:
// pointers of previous and next entry
//
void vertex_remove(int id)
{
m_v_next[m_v_prev[id]] = m_v_next[id];
m_v_prev[m_v_next[id]] = m_v_prev[id];
}
//////////
//
// Write layer data to mill files.
//
// Params:
// none
// Return:
// none
// Changes:
// g_tool_size
// m_lines
//
void output_mill_code()
{
int state;
int old_x, old_y;
int first_run = true;
string str;
board(B) {
output(get_filename(), FILEMODE_WRITE_TEXT) {
user_file_opened(get_filename(), FILEMODE_WRITE_TEXT);
output_file_preamble();
// Initialize the device (i.e. the output file).
begin_gcode(SPINDLE_MILL_RPM);
m_v_n =1;
// Process all the wires.
B.wires(W) W.pieces(P) {
// If this is a mill layer, check if we should continue
// a line, or start a new one.
if (P.layer == MILL_LAYER) {
if (P.x1 == old_x && P.y1 == old_y && !first_run) {
state = ST_CONTINUE_LINE;
}
else {
state = ST_START_LINE;
first_run = false;
}
// if this is an arc, it is treated specially.
if (P.arc) {
sprintf(str, "# arc xc=%f yc=%f sang=%f eang=%f radius=%f\n",
scale_x(P.arc.xc), scale_y(P.arc.yc), P.arc.angle1, P.arc.angle2, scale_x(P.arc.radius));
m_lines += str;
sprintf(str, "# debug W.x1=%8.5f W.y1=%8.5f W.x2=%8.5f W.y2=%8.5f W.curve=%f\n",
scale_x(W.x1), scale_y(W.y1), scale_x(W.x2), scale_y(W.y2), W.curve);
m_lines += str;
sprintf(str, "# debug P.arc.x1=%8.5f P.arc.y1=%8.5f P.arc.x2=%8.5f P.arc.y2=%8.5f\n",
scale_x(P.arc.x1), scale_y(P.arc.y1), scale_x(P.arc.x2), scale_y(P.arc.y2));
m_lines += str;
m_lines += "# debug\n";
// device_draw( P.arc.x1, P.arc.y1, P.arc.x2, P.arc.y2, ST_ARC_BEGIN, P.arc.radius, FEED_RATE_MILL_XY, FEED_RATE_MILL_Z);
// device_draw( P.arc.x2, P.arc.y2, P.arc.xc, P.arc.yc, ST_ARC_END, MILLING_DEPTH, FEED_RATE_MILL_XY, FEED_RATE_MILL_Z);
////////// mlmSolutions added 5 Feb 14
// As we cannot assume that "pieces" come from "wires" in any particular order or that they are contiguous
// we will have to save the start and end vertices.
// save arc data
m_v_x[m_v_n] = P.arc.x1;
m_v_y[m_v_n] = P.arc.y1;
m_v_xc[m_v_n] = P.arc.xc;
m_v_yc[m_v_n] = P.arc.yc;
m_v_rad[m_v_n] = P.arc.radius;
m_v_curve[m_v_n] = W.curve;
m_v_prev[m_v_n] = m_v_n - 1;
m_v_next[m_v_n] = 0;
m_v_next[m_v_n - 1] = m_v_n;
m_v_step[m_v_n] = 0;
++m_v_n;
m_v_x[m_v_n] = P.arc.x2;
m_v_y[m_v_n] = P.arc.y2;
m_v_xc[m_v_n] = P.arc.xc;
m_v_yc[m_v_n] = P.arc.yc;
m_v_rad[m_v_n] = P.arc.radius;
m_v_curve[m_v_n] = W.curve;
m_v_prev[m_v_n] = m_v_n - 1;
m_v_next[m_v_n] = 0;
m_v_next[m_v_n - 1] = m_v_n;
m_v_step[m_v_n] = 0;
++m_v_n;
//////////
save_extents(P.x1, P.y1);
save_extents(P.x2, P.y2);
state = ST_START_LINE;
}
else {