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How to use delete_segment method in tempest

Best Python code snippet using tempest_python

test_decomp.py

Source:test_decomp.py

...223        assert len(decomp.polygons) == 2224        assert pd.get_last_polygon_changes() == (PolygonChange.shape, [outer.id], None)225        #plot_polygon_decomposition(decomp)226        # delete segment - split wire227        pd.delete_segment(sg_m)228        assert len(decomp.wires) == 4229        assert len(decomp.polygons) == 2230        #plot_polygon_decomposition(decomp)231        assert pd.get_last_polygon_changes() == (PolygonChange.shape, [outer.id], None)232        # other split wire233        pt_op = sg_p.vtxs[out_vtx]234        pd.delete_segment(sg_f)235        assert len(decomp.wires) == 5236        assert len(decomp.polygons) == 2237        #plot_polygon_decomposition(decomp)238        #test split_segment connected on both sides; split non outer polygon239        seg_y, = pd.add_line( (0,0.25), (0.25, 0.25))240        assert pd.get_last_polygon_changes() == (PolygonChange.split, 1, 2)241        # test _join_segments - _split_segment inversion242        seg1 = sg_e243        mid_point = seg1.vtxs[in_vtx]244        seg0 = sg_e.next[left_side][0]245        decomp.join_segments(mid_point, seg0, seg1)246        # print("Decomp:\n", decomp)247        pd.delete_point(pt_op)248        # plot_polygon_decomposition(decomp)249        # test join polygons250        pd.delete_segment(seg_y)251        assert pd.get_last_polygon_changes() == (PolygonChange.join, 1, 2)252        # test add_free_point253        pd.add_free_point(100, (3.0, 0.3), decomp.outer_polygon.id)254        pd.remove_free_point(100)255    def check_split_poly_structure(self, decomp, out_square, in_square):256        decomp.check_consistency()257        sg_a, sg_b, sg_c, sg_d = out_square258        sg_e, sg_f, sg_g, sg_h = in_square259        assert sg_b.wire == sg_a.wire260        assert sg_c.wire == sg_a.wire261        assert sg_d.wire == sg_a.wire262        assert sg_f.wire == sg_e.wire263        assert sg_g.wire == sg_e.wire264        assert sg_h.wire == sg_e.wire265        wire1 = decomp.outer_polygon.outer_wire266        wire2 = list(wire1.childs)[0]267        wire3 = list(wire2.childs)[0]268        assert sg_a.wire == [wire2, wire3]269        wire4 = list(wire3.childs)[0]270        wire5 = list(wire4.childs)[0]271        assert sg_e.wire == [wire4, wire5]272        assert len(wire5.childs) == 0273    def test_split_poly(self):274        pd = PolygonDecomposition()275        decomp = pd.decomp276        sg_a, = pd.add_line((0,0), (2,0))277        sg_b, = pd.add_line((2, 0), (2, 2))278        sg_c, = pd.add_line((2, 2), (0, 2))279        sg_d, = pd.add_line((0, 2), (0, 0))280        # closed outer polygon281        assert sg_a.next == [ (sg_d, 0), (sg_b, 1)]282        assert sg_b.next == [ (sg_a, 0), (sg_c, 1)]283        assert sg_c.next == [ (sg_b, 0), (sg_d, 1)]284        assert sg_d.next == [ (sg_c, 0), (sg_a, 1)]285        external_wire = list(decomp.outer_polygon.outer_wire.childs)[0]286        assert sg_a.wire[right_side] == external_wire287        assert sg_b.wire[right_side] == external_wire288        assert sg_c.wire[right_side] == external_wire289        assert sg_d.wire[right_side] == external_wire290        #plot_polygon_decomposition(decomp)291        assert len(decomp.polygons) == 2292        sg_e, = pd.add_line((0.5, 0.5), (1, 0.5))293        sg_f, = pd.add_line((1, 0.5), (1, 1))294        sg_g, = pd.add_line((1, 1), (0.5, 1))295        sg_h, = pd.add_line((0.5, 1), (0.5, 0.5))296        # closed inner polygon297        #plot_polygon_decomposition(decomp)298        print("Decomp:\n", pd)299        out_square = sg_a, sg_b, sg_c, sg_d300        in_square = sg_e, sg_f, sg_g, sg_h301        self.check_split_poly_structure(decomp, out_square, in_square)302        # join nested wires303        sg_x = pd.new_segment(sg_e.vtxs[out_vtx],  sg_a.vtxs[out_vtx] )304        # split nested wires305        #plot_polygon_decomposition(decomp)306        pd.delete_segment(sg_x)307        self.check_split_poly_structure(decomp, out_square, in_square)308        # Join nested wires, oposite (other order of wires in _split_wires)309        sg_x = pd.new_segment(sg_a.vtxs[out_vtx], sg_e.vtxs[out_vtx])310        # split nested wires311        #plot_polygon_decomposition(decomp)312        pd.delete_segment(sg_x)313        self.check_split_poly_structure(decomp, out_square, in_square)314        # split polygon - balanced315        seg_y, = pd.add_line((0.5, 0.5), (1,1))316        # join polygons - balanced317        pd.delete_segment(seg_y)318        self.check_split_poly_structure(decomp, out_square, in_square)319        # join nested polygons320        pd.delete_segment(sg_h)321        #plot_polygon_decomposition(decomp)322        assert sg_b.wire == sg_a.wire323        assert sg_c.wire == sg_a.wire324        assert sg_d.wire == sg_a.wire325        assert sg_f.wire == sg_e.wire326        assert sg_g.wire == sg_e.wire327        assert sg_h.wire == sg_e.wire328        we_r, we_l = sg_e.wire329        assert we_r == we_l330        wire1 = decomp.outer_polygon.outer_wire331        wire2 = list(wire1.childs)[0]332        wire3 = list(wire2.childs)[0]333        assert sg_a.wire == [wire2, wire3]334        wire4 = list(wire3.childs)[0]335        assert we_r == wire4336        assert len(wire4.childs) == 0337    def test_main_polygon_with_childs(self):338        da = PolygonDecomposition()339        decomp = da.decomp340        seg_in, = da.add_line((0.1, 0.5), (0.9, 0.5))341        seg_out, = da.add_line((0.1, -0.5), (0.9, -0.5))342        da.add_line((0, 0), (1, 0))343        da.add_line((0, 0), (0, 1))344        da.add_line((1, 1), (1, 0))345        da.add_line((1, 1), (0, 1))346        assert seg_in.wire[0] == seg_in.wire[1]347        assert seg_in.wire[0].polygon != decomp.outer_polygon348        assert seg_out.wire[0] == seg_out.wire[1]349        assert seg_out.wire[0].polygon == decomp.outer_polygon350    def test_seg_add_remove(self):351        pd = PolygonDecomposition()352        decomp = pd.decomp353        pd.add_line((0, 1), (0,0))354        pd.add_line((0, 0), (1, 0))355        seg_c, = pd.add_line((1, 0), (0, 1))356        pd.add_line((1, 0), (2, 0))357        pd.add_line((2, 0), (2, 1))358        pd.add_line((1, 0), (2, 1) )359        #plot_polygon_decomposition(decomp)360        assert len(decomp.outer_polygon.outer_wire.childs) == 1361        assert len(decomp.outer_polygon.outer_wire.childs.pop().childs) == 2362        pd.delete_segment(seg_c)363        #plot_polygon_decomposition(decomp)364    def test_split_poly_1(self):365        # Test splitting of points and holes.366        pd = PolygonDecomposition()367        decomp = pd.decomp368        pd.add_line((0, 0), (1,0))369        pd.add_line((0, 0), (0, 1))370        pd.add_line((1, 1), (1, 0))371        pd.add_line((1, 1), (0, 1))372        pd.add_point( (0.2,0.2))373        pd.add_point( (0.8, 0.2))374        pd.add_line((0.2, 0.6), (0.3,0.6))375        pd.add_line((0.8, 0.6), (0.7, 0.6))376        #plot_polygon_decomposition(decomp)377        pd.add_line((0.5,0), (0.5,1))378        #plot_polygon_decomposition(decomp)379    def test_join_poly(self):380        pd = PolygonDecomposition()381        decomp = pd.decomp382        sg0, = pd.add_line((0, 0), (0, 2))383        pd.add_line((0, 0), (2, 0))384        sg2, = pd.add_line((0, 2), (2, 0))385        pd.delete_segment(sg2)386    def test_join_segments(self):387        pd = PolygonDecomposition()388        decomp = pd.decomp389        sg0, = pd.add_line((0,0), (1,0))390        mid_pt = sg0.vtxs[1]391        sg1, = pd.add_line((2,0), (1,0))392        sg2, = pd.add_line((2, 0), (3, 0))393        decomp.join_segments(sg0.vtxs[1], sg0, sg1)394        decomp.join_segments(sg0.vtxs[1], sg0, sg2)395    def test_join_polygons_embedded(self):396        pd = PolygonDecomposition()397        decomp = pd.decomp398        pd.add_line((0, 0), (3, 0))399        pd.add_line((0, 0), (0, 3))400        sg3, = pd.add_line((0, 3), (3, 0))401        pd.delete_segment(sg3)402        assert len(decomp.outer_polygon.outer_wire.childs) == 1403        wire = list(decomp.outer_polygon.outer_wire.childs)[0]404        assert len(wire.childs) == 0405    def test_polygon_childs_degenerate(self):406        pd = PolygonDecomposition()407        decomp = pd.decomp408        pd.add_line((0, 0), (3, 0))409        pd.add_line((0, 0), (0, 3))410        pd.add_line((0, 3), (3, 0))411        pd.add_line((1, 1), (2, 1))412        pd.add_line((1, 1), (1, 2))413        pd.add_line((1, 2), (2, 1))414        #plot_polygon_decomposition(decomp)415        pd.add_line((1, 1), (0, 0))416        pd.add_line((2, 1), (3, 0))417        pd.add_line((1, 2), (0, 3))418        #plot_polygon_decomposition(decomp)419    def test_polygon_childs(self):420        pd = PolygonDecomposition()421        decomp = pd.decomp422        pd.add_line((0, 0), (4, 0))423        pd.add_line((0, 0), (0, 4))424        pd.add_line((0, 4), (4, 0))425        pd.add_line((1, 1), (2, 1))426        pd.add_line((1, 1), (1, 2))427        pd.add_line((1, 2), (2, 1))428        #plot_polygon_decomposition(decomp)429        lst = list(pd.get_childs(0))430        assert lst == [0,1,2]431        pd.add_line((1, 1), (0, 0))432        pd.add_line((2, 1), (4, 0))433        pd.add_line((1, 2), (0, 4))434        #plot_polygon_decomposition(decomp)435    def test_add_dendrite(self):436       pd = PolygonDecomposition()437       decomp = pd.decomp438       pt0 = pd.add_point( (31.6, -40) )439       pt1 = pd.add_point( (32.4, -62.8) )440       pt2 = pd.add_point( (57.7, -37.4) )441       pd.new_segment(pt0, pt1)442       pd.new_segment(pt0, pt2)443       pd.new_segment(pt1, pt2)444       # print(decomp)445       pt3 = pd.add_free_point(4, (75.7, -35), 0 )446       pd.new_segment(pt2, pt3)447       #plot_polygon_decomposition(decomp)448    def test_complex_wire_remove(self):449        da = PolygonDecomposition()450        # outer triangle451        da.add_line((0, 4), (0,0))452        da.add_line((0, 0), (4, 0))453        da.add_line((4, 0), (0, 4))454        # inner triangle455        da.add_line((1, 2), (1, 1))456        da.add_line((1, 1), (2, 1))457        da.add_line((2, 1), (1, 2))458        # rugs459        sa, = da.add_line((2, 1), (4, 0))460        sb, = da.add_line((1, 2), (0, 4))461        #print("initial dc:\n", da)462        #plot_polygon_decomposition(da)463        da.delete_segment(sb)464        da.delete_segment(sa)465        #print("final dc:\n", da)466    def test_complex_join_polygons(self):467        da = PolygonDecomposition()468        # outer triangle469        da.add_line((0, 4), (0,0))470        da.add_line((0, 0), (4, 0))471        da.add_line((4, 0), (0, 4))472        # inner triangle473        da.add_line((1, 2), (1, 1))474        da.add_line((1, 1), (2, 1))475        seg, = da.add_line((2, 1), (1, 2))476        # inner triangle477        da.add_line((1.2, 1.6), (1.2, 1.2))478        da.add_line((1.2, 1.2), (1.6, 1.2))479        da.add_line((1.6, 1.2), (1.2, 1.6))480        da.decomp.check_consistency()481        #plot_polygon_decomposition(da)482        da.delete_segment(seg)...

interval_selection.py

Source:interval_selection.py

1#!/bin/python2"""3You are given a list of N intervals.4The challenge is to select the largest subset of intervals such that no three intervals in the subset share a common point?5Input:6The first line contains the number of cases T. T cases follow. Each case contains the number N on the first line followed by N lines containing integers ai and bi. The ith line denotes the starting and ending points of the ith interval.7Output:8Output T lines, one for each test case, containing the desired answer for the corresponding test case.9Constraints:101 <= T <= 100112 <= N <= 1000121 <= ai <= bi <= 1000000000 (10^9)13"""14test = int(raw_input())15for t in xrange(0, test):16	N = int(raw_input())17	A = []18	B = []19	segments = []20	for i in range(0, N):21		numbers = raw_input()22		a, b = [int(x) for x in numbers.split(' ')]23                segments.append((a,b))   24		A.append(a)25		B.append(b)26        B = sorted(B)27        # check if more than 2 segments are covering it28        for i in B:29            num_covering = 030            delete_segment = -1,-131            for a,b in segments:32                if a<= i and i<=b:33                    num_covering += 134                    if delete_segment[1] < b:35                        delete_segment = a, b36            if num_covering > 2:37                segments.remove(delete_segment)38                    39	result = len(segments)...

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