GopherProxy

	twrite slider positions to file, todo: add other params - slidergrid - grid of …
	git clone git://src.adamsgaard.dk/slidergrid
	Log
	Files
	Refs
	README
	LICENSE
	---
	commit 0f79de37df00ace7285e5b445d648a90a27d6def
	parent bd4fc9c6e32224ee34ffce1e727317cc3b8375f5
	Author: Anders Damsgaard <[email protected]>
	Date: Wed, 16 Mar 2016 16:05:11 -0700

	write slider positions to file, todo: add other params

	Diffstat:
	M slidergrid/main.c \| 24 ++++++++++++++++++++++++
	M slidergrid/simulation.c \| 20 ++++++++++++++++++++
	M slidergrid/simulation.h \| 3 +++

	3 files changed, 47 insertions(+), 0 deletions(-)
	---
	diff --git a/slidergrid/main.c b/slidergrid/main.c
	t@@ -1,6 +1,9 @@
	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	+#include <sys/types.h>
	+#include <sys/stat.h>
	+#include <unistd.h>
	#include "slider.h"
	#include "grid.h"
	#include "simulation.h"
	t@@ -94,9 +97,19 @@ int main(int argc, char** argv)
	printf("time step length: dt = %f s\n", sim.dt);
	}

	+ // create output file directory with simulation id as name and placed in
	+ // current folder if it doesn't already exist
	+ char output_folder[400];
	+ sprintf("./%s/", output_folder, sim.id);
	+ struct stat st = {0};
	+ if (stat(output_folder, &st) == -1)
	+ mkdir(output_folder, 0700);
	+
	// main temporal loop
	sim.iteration = 0;
	Float time_since_status = 0.0;
	+ Float time_since_file = 0.0;
	+ char filename[1000];
	for (sim.time = 0.0;
	sim.time <= sim.time_end;
	sim.time += sim.dt) {
	t@@ -115,6 +128,16 @@ int main(int argc, char** argv)
	update_kinematics(sim.sliders[i], sim.dt, sim.iteration);
	}

	+ if (time_since_file >= sim.file_interval) {
	+ sprintf(filename, "%s/output%06d.txt",
	+ output_folder, sim.file_number);
	+ if (save_simulation_to_file(sim, filename)) {
	+ fprintf(stderr, "\nFatal error: Could not save to output file "
	+ "'%s'.\n", filename);
	+ return EXIT_FAILURE;
	+ }
	+ }
	+
	if (verbose) {
	if (time_since_status > sim.dt*100. \|\|
	time_since_status >= sim.file_interval) {
	t@@ -125,6 +148,7 @@ int main(int argc, char** argv)

	sim.iteration++;
	time_since_status += sim.dt;
	+ time_since_file += sim.dt;
	}

	print_status(sim);
	diff --git a/slidergrid/simulation.c b/slidergrid/simulation.c
	t@@ -14,6 +14,7 @@ simulation create_simulation()
	sim.bond_length_limit = 0;
	sim.id = "unnamed";
	sim.file_interval = 0.0;
	+ sim.file_number = 0;
	sim.verbose = 0;
	return sim;
	}
	t@@ -120,3 +121,22 @@ int save_slider_positions_to_file(
	fclose(f);
	return 0;
	}
	+
	+int save_simulation_to_file(const simulation sim, const char* filename)
	+{
	+ FILE* f = fopen(filename, "w");
	+ if (f == NULL) {
	+ fprintf(stderr, "Could not open output file %s.", filename);
	+ return 1;
	+ }
	+
	+ int i;
	+ for (i=0; i<sim.N; i++)
	+ printf("%f\t%f\t%f\n",
	+ sim.sliders[i].pos.x,
	+ sim.sliders[i].pos.y,
	+ sim.sliders[i].pos.z);
	+
	+ fclose(f);
	+ return 0;
	+}
	diff --git a/slidergrid/simulation.h b/slidergrid/simulation.h
	t@@ -13,6 +13,7 @@ typedef struct {
	Float bond_length_limit;
	char* id;
	Float file_interval;
	+ int file_number;
	int verbose;
	} simulation;

	t@@ -31,6 +32,8 @@ int save_slider_positions_to_file(
	const int N,
	const char* filename);

	+int save_simulation_to_file(const simulation sim, const char* filename);
	+
	// user-defined function which sets up the simulation
	simulation setup_simulation();