Example #1
0
int codetree_get(codetree_t* s, unsigned int codeid, double* code) {
	if (s->tree->perm && !s->inverse_perm) {
		codetree_compute_inverse_perm(s);
		if (!s->inverse_perm)
			return -1;
	}
	if (codeid >= Ndata(s)) {
		fprintf(stderr, "Invalid code ID: %u >= %u.\n", codeid, Ndata(s));
		return -1;
	}
	if (s->inverse_perm)
		kdtree_copy_data_double(s->tree, s->inverse_perm[codeid], 1, code);
	else
		kdtree_copy_data_double(s->tree, codeid, 1, code);
	return 0;
}
Example #2
0
int startree_get(startree_t* s, int starid, double* posn) {
	if (s->tree->perm && !s->inverse_perm) {
		startree_compute_inverse_perm(s);
		if (!s->inverse_perm)
			return -1;
	}
	if (starid >= Ndata(s)) {
		fprintf(stderr, "Invalid star ID: %u >= %u.\n", starid, Ndata(s));
                assert(0);
		return -1;
	}
	if (s->inverse_perm) {
		kdtree_copy_data_double(s->tree, s->inverse_perm[starid], 1, posn);
	} else {
		kdtree_copy_data_double(s->tree, starid, 1, posn);
	}
	return 0;
}
Example #3
0
static PyObject* spherematch_kdtree_get_data(PyObject* self, PyObject* args) {
  PyArrayObject* pyX;
  double* X;
  PyObject* rtn;
  npy_intp dims[2];
  long i;
  kdtree_t* kd;
  int k, D, N;
  //npy_int* I;
  npy_uint32* I;
  PyObject* pyO;
  PyObject* pyI;
  // this is the type returned by kdtree_rangesearch
  PyArray_Descr* dtype = PyArray_DescrFromType(NPY_UINT32);
  int req = NPY_C_CONTIGUOUS | NPY_ALIGNED | NPY_NOTSWAPPED | NPY_ELEMENTSTRIDES;

  if (!PyArg_ParseTuple(args, "lO", &i, &pyO)) {
    PyErr_SetString(PyExc_ValueError, "need two args: kdtree identifier (int), index array (numpy array of ints)");
    return NULL;
  }
  // Nasty!
  kd = (kdtree_t*)i;
  D = kd->ndim;

  Py_INCREF(dtype);
  pyI = PyArray_FromAny(pyO, dtype, 1, 1, req, NULL);
  if (!pyI) {
    PyErr_SetString(PyExc_ValueError, "Failed to convert index array to np array of int");
    Py_XDECREF(dtype);
    return NULL;
  }
  N = (int)PyArray_DIM(pyI, 0);

  dims[0] = N;
  dims[1] = D;

  pyX = (PyArrayObject*)PyArray_SimpleNew(2, dims, NPY_DOUBLE);
  X = PyArray_DATA(pyX);
  I = PyArray_DATA(pyI);

  for (k=0; k<N; k++) {
    kdtree_copy_data_double(kd, I[k], 1, X);
    X += D;
  }
  Py_DECREF(pyI);
  Py_DECREF(dtype);
  rtn = Py_BuildValue("O", pyX);
  Py_DECREF(pyX);
  return rtn;
}
Example #4
0
int allquads_create_quads(allquads_t* aq) {
	quadbuilder_t* qb;
	int i, N;
	double* xyz;

	qb = quadbuilder_init();

	qb->quadd2_high = aq->quad_d2_upper;
	qb->quadd2_low  = aq->quad_d2_lower;
	qb->check_scale_high = aq->use_d2_upper;
	qb->check_scale_low  = aq->use_d2_lower;

	qb->dimquads = aq->dimquads;
	qb->add_quad = add_quad;
	qb->add_quad_token = aq;

	N = startree_N(aq->starkd);

	if (!qb->check_scale_high) {
		int* inds;
		inds = malloc(N * sizeof(int));
		for (i=0; i<N; i++)
			inds[i] = i;
		xyz = malloc(3 * N * sizeof(double));
		kdtree_copy_data_double(aq->starkd->tree, 0, N, xyz);

		qb->starxyz = xyz;
		qb->starinds = inds;
		qb->Nstars = N;

		quadbuilder_create(qb);

		free(xyz);
		free(inds);
	} else {
		int nq;
		int lastgrass = 0;

		/*
		 xyz = malloc(3 * N * sizeof(double));
		 kdtree_copy_data_double(aq->starkd->tree, 0, N, xyz);
		 */

		// star A = i
		nq = aq->quads->numquads;
		for (i=0; i<N; i++) {
			double xyzA[3];
			int* inds;
			int NR;

			int grass = (i*80 / N);
			if (grass != lastgrass) {
				printf(".");
				fflush(stdout);
				lastgrass = grass;
			}

			startree_get(aq->starkd, i, xyzA);

			startree_search_for(aq->starkd, xyzA, aq->quad_d2_upper,
								&xyz, NULL, &inds, &NR);

			/*
			 startree_search_for(aq->starkd, xyzA, aq->quad_d2_upper,
			 NULL, NULL, &inds, &NR);
			 */

			logverb("Star %i of %i: found %i stars in range\n", i+1, N, NR);
			aq->starA = i;
			qb->starxyz = xyz;
			qb->starinds = inds;
			qb->Nstars = NR;
			qb->check_AB_stars = check_AB;
			qb->check_AB_stars_token = aq;
			//qb->check_full_quad = check_full_quad;
			//qb->check_full_quad_token = aq;

			quadbuilder_create(qb);

			logverb("Star %i of %i: wrote %i quads for this star, total %i so far.\n", i+1, N, aq->quads->numquads - nq, aq->quads->numquads);
			free(inds);
			free(xyz);
		}
		//
		//free(xyz);

		printf("\n");
	}

	quadbuilder_free(qb);
	return 0;
}
Example #5
0
int main(int argc, char** args) {
    int argchar;
	char* progname = args[0];
	kdtree_t* kd;
	char* fn;
	int printData = 0;
	int treeData = 0;

    while ((argchar = getopt(argc, args, OPTIONS)) != -1)
        switch (argchar) {
		case 'h':
			printHelp(progname);
			exit(-1);
		case 'd':
			printData = 1;
			break;
		case 'n':
			treeData = 1;
			break;
		}

    if (argc - optind == 1) {
		fn = args[optind];
		optind++;
    } else {
		printHelp(progname);
		exit(-1);
	}

	printf("Reading kdtree from file %s ...\n", fn);
	kd = kdtree_fits_read(fn, NULL, NULL);

    printf("Tree name: \"%s\"\n", kd->name);

	printf("Treetype: 0x%x\n", kd->treetype);

	printf("Data type:     %s\n", kdtree_kdtype_to_string(kdtree_datatype(kd)));
	printf("Tree type:     %s\n", kdtree_kdtype_to_string(kdtree_treetype(kd)));
	printf("External type: %s\n", kdtree_kdtype_to_string(kdtree_exttype(kd)));

	printf("N data points:  %i\n", kd->ndata);
	printf("Dimensions:     %i\n", kd->ndim);
	printf("Nodes:          %i\n", kd->nnodes);
	printf("Leaf nodes:     %i\n", kd->nbottom);
	printf("Non-leaf nodes: %i\n", kd->ninterior);
	printf("Tree levels:    %i\n", kd->nlevels);

	printf("LR array:     %s\n", (kd->lr     ? "yes" : "no"));
	printf("Perm array:   %s\n", (kd->perm   ? "yes" : "no"));
	printf("Bounding box: %s\n", (kd->bb.any ? "yes" : "no"));
	printf("Split plane:  %s\n", (kd->split.any ? "yes" : "no"));
	printf("Split dim:    %s\n", (kd->splitdim  ? "yes" : "no"));
	printf("Data:         %s\n", (kd->data.any  ? "yes" : "no"));

	if (kd->minval && kd->maxval) {
		int d;
		printf("Data ranges:\n");
		for (d=0; d<kd->ndim; d++)
			printf("  %i: [%g, %g]\n", d, kd->minval[d], kd->maxval[d]);
	}

	printf("Running kdtree_check...\n");
	if (kdtree_check(kd)) {
		printf("kdtree_check failed.\n");
		exit(-1);
	}

	if (printData) {
		int i, d;
		int dt = kdtree_datatype(kd);
		double data[kd->ndim];
		for (i=0; i<kd->ndata; i++) {
			int iarray;
			kdtree_copy_data_double(kd, i, 1, data);
			printf("data[%i] = %n(", i, &iarray);
			for (d=0; d<kd->ndim; d++)
				printf("%s%g", d?", ":"", data[d]);
			printf(")\n");

			if (treeData) {
				printf("%*s(", iarray, "");
				for (d=0; d<kd->ndim; d++)
					switch (dt) {
					case KDT_DATA_DOUBLE:
						printf("%s%g", (d?", ":""),
							   kd->data.d[kd->ndim * i + d]);
						break;
					case KDT_DATA_FLOAT:
						printf("%s%g", (d?", ":""),
							   kd->data.f[kd->ndim * i + d]);
						break;
					case KDT_DATA_U32:
						printf("%s%u", (d?", ":""),
							   kd->data.u[kd->ndim * i + d]);
						break;
					case KDT_DATA_U16:
						printf("%s%u", (d?", ":""),
							   (unsigned int)kd->data.s[kd->ndim * i + d]);
						break;
					}
				printf(")\n");
			}
		}
	}

	kdtree_fits_close(kd);

	return 0;
}
Example #6
0
void test_hd_1(CuTest* tc) {
    hd_catalog_t* hdcat;
    int* invperm;
    int* present;
    int ind, i, N;
    double xyz[3];
    double ra, dec;
    int strangehds[] = { 40142, 40441, 40672, 40746, 40763, 40764,
                         104176, 104193, 163635, 224698, 224699,
                         129371 };

    if (!file_readable("hd.fits")) {
        printf("File \"hd.fits\" does not exist; test skipped.\n");
        return;
    }

    hdcat = henry_draper_open("hd.fits");
    CuAssertPtrNotNull(tc, hdcat);

    N = hdcat->kd->ndata;
    invperm = calloc(N, sizeof(int));
    CuAssertPtrNotNull(tc, invperm);

    CuAssertIntEquals(tc, 0, kdtree_check(hdcat->kd));

    kdtree_inverse_permutation(hdcat->kd, invperm);

    present = calloc(N, sizeof(int));
    for (i=0; i<N; i++) {
        CuAssert(tc, "invperm in range", invperm[i] < N);
        present[invperm[i]]++;
    }

    for (i=0; i<N; i++) {
        CuAssertIntEquals(tc, 1, present[i]);
    }
    free(present);

    // Where is "HD n" ?
    for (i=0; i<10; i++) {
        bl* res;
        int j;

        ind = invperm[i];
        kdtree_copy_data_double(hdcat->kd, ind, 1, xyz);
        xyzarr2radecdeg(xyz, &ra, &dec);
        printf("HD %i: RA,Dec %g, %g\n", i+1, ra, dec);

        res = henry_draper_get(hdcat, ra, dec, 10.0);
        CuAssertPtrNotNull(tc, res);
        for (j=0; j<bl_size(res); j++) {
            hd_entry_t* hd = bl_access(res, j);
            printf("res %i: HD %i, RA, Dec %g, %g\n", j, hd->hd, hd->ra, hd->dec);
        }
        bl_free(res);
    }

    for (i=0; i<sizeof(strangehds)/sizeof(int); i++) {
        ind = invperm[strangehds[i]-1];
        kdtree_copy_data_double(hdcat->kd, ind, 1, xyz);
        xyzarr2radecdeg(xyz, &ra, &dec);
        printf("HD %i: RA,Dec %g, %g\n", strangehds[i], ra, dec);
    }
    free(invperm);

    henry_draper_close(hdcat);
}