質問編集履歴
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書式の改善、タイトルの変更、内容の追加
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インスタンスが生成できない
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c++ インスタンスが生成できない
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test
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```
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### 該当のソースコード
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```
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ソースコード
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```言語：c++
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//main.cpp
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include "Circle.h"
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#include "Circle.h"
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include "ColorCircle.h"
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#include "ColorCircle.h"
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include "LineCircle.h"
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#include "LineCircle.h"
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}
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else {// i が奇数の場合
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else {// i が奇数の場合 ここでエラー
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circ = new LineCircle(20 * (i + 1), 20, 10, "red", 3);
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}
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``````
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```c++
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//LineCircle.h
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#pragma once
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include"
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#include "ColorCircle.h"
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using namespace std;
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class LineCircle : public ColorCircle {
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protected:
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string LineColor;
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int width;
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public:
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LineCircle();
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LineCircle(int cx, int cy, int r, string c1, int w);
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virtual void draw(svg*);
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void setLineColor(string c1);
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void setwidth(int w);
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};
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```
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```
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//LinceCircle.cpp
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#include"LineCircle.h"
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using namespace std;
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LineCircle::LineCircle() : ColorCircle() {
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LineColor = "black";
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``````
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```
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//ColorCircle.h
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#pragma once
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include
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#include"Circle.h"
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using namespace std;
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class ColorCircle : public Circle {
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protected:
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string color; //描画色
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public:
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ColorCircle(); //コンストラクタ
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ColorCircle(int cx, int cy, int r, string c); //引数ありコンストラクタ
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virtual void draw(svg*); //Circleクラスのdrawをオーバーライド
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void setColor(string c); //色の設定
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};
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```
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```
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//ColorCircle.cpp
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#include "ColorCircle.h"
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using namespace std;
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ColorCircle::ColorCircle() : Circle() {
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color = "black";
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``````
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```
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//Circle.h
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#pragma once
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#include<iostream>
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#include"svg.h"
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class Circle {
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protected:
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int x, y;
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int rad;
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public:
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Circle();
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Circle(int cx, int cy, int r = 10);
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void setPosition(int x, int y);
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void setRadius(int rad);
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int getRadius();
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void getPosition(int xy[]);
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virtual void draw(svg*) = 0;
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//bool checkOverlap(Circle circ);
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};
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```
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``````
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//Circle.cpp
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include"Circle.h"
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#include"Circle.h"
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#include<cmath>
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@@ -254,6 +376,134 @@
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/*bool Circle::checkOverlap(Circle circ) {
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int txy1[2];
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int txy2[2];
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int trad;
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double d;
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trad = circ.getRadius() + this->getRadius(); //2つの半径の和
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circ.getPosition(txy1);
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this->getPosition(txy2);
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//中心の距離
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d = sqrt((txy1[0] - txy2[0]) * (txy1[0] - txy2[0]) + (txy1[1] - txy2[1]) * ((txy1[1] - txy2[1])));
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if (d > trad) {
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return false;
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}
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else {
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return true;
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}
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}*/
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`````````
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```
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//svg.h
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#pragma once
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#include<fstream>
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#include<string>
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using namespace std;
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class svg {
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private:
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ofstream ofs;
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public:
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void open(string filename, int width, int height);
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void close();
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void drawCircle(int x, int y, int rad, string color = "black", int width = 0);
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};
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`````````
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458
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```
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460
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461
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//svg.cpp
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462
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#include"svg.h"
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466
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467
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void svg::open(string filename, int width, int height) {
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469
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ofs.open(filename);
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470
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471
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ofs << "<svg width='" << width << "' height='" << height << "' >" << endl;
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472
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473
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}
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474
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475
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476
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477
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void svg::close() {
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478
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479
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ofs << "</svg>";
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480
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481
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ofs.close();
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}
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484
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485
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486
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487
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void svg::drawCircle(int x, int y, int rad, std::string color, int width) {
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488
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489
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if (width > 0) // 線幅が指定されていれば輪郭線を描画する (draw only contour for non-zero width)
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490
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491
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ofs << "<circle cx='" << x << "' cy='" << y << "' r='" << rad
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<< "' stroke='" << color << "' stroke-width='" << width << "' fill='none' />";
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494
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495
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else // 線幅が指定されていないか、値が0以下であれば、円の内部を塗りつぶす (fill inside circle)
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496
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497
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ofs << "<circle cx='" << x << "' cy='" << y << "' r='" << rad
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<< "' fill='" << color << "' />";
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500
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501
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ofs << std::endl; // 改行
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502
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503
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}
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504
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505
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```
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