void OnSizeChanged(object sender, EventArgs e)
{
double ratio_x = _size.x > 0 ? (double)_pos.x / _size.x : _pos.x;
double ratio_y = _size.y > 0 ? (double)_pos.y / _size.y : _pos.y;
_size = _owner.Camera.ScreenSize;
_pos.x = (int)(ratio_x * _size.x);
_pos.y = (int)(ratio_y * _size.y);
this.FixPos();
}
void FixPos()
{
const int MARGIN = 5;
Geom.Size2i size = _view.Camera.ScreenSize;
Geom.Box2i box = this.BoundingBox;
if (box.Lower.x < MARGIN)
{
_pos.x += MARGIN - box.Lower.x;
}
if (box.Lower.y < MARGIN)
{
_pos.y += MARGIN - box.Lower.y;
}
if (box.Upper.x + MARGIN > size.x)
{
_pos.x -= box.Upper.x + MARGIN - size.x;
}
if (box.Upper.y + MARGIN > size.y)
{
_pos.y -= box.Upper.y + MARGIN - size.y;
}
}
public void Draw( ISceneContext context )
{
_size = context.Camera.ScreenSize;
using ( var whole = context.Push() ) {
whole.Color = Color.Gray;
whole.PointSize = 3;
whole.LineWidth = 1;
// X, Y ���i�����j�̕`��
context.DrawLines( gl =>
{
gl.Vertex( 0, _pos.y );
gl.Vertex( _size.x, _pos.y );
gl.Vertex( _pos.x, 0 );
gl.Vertex( _pos.x, _size.y );
} );
// �ڐ��̊Ԋu
const int P0 = 16; // �ڐ��̍ŏ��s�N�Z����
double unit = context.Camera.LengthPerPixel;
double exp = Math.Log10( P0 * unit );
double delta = Math.Pow( 10, Math.Ceiling( exp ) );
if ( delta / unit > 5 * P0 ) delta /= 2;
Geom.Box2d box = new Geom.Box2d(
new Geom.Point2d( -_pos.x * unit, (_pos.y - _size.y) * unit ),
new Geom.Point2d( (_size.x - _pos.x) * unit, _pos.y * unit )
);
// �ڐ���_��Ƃ��ĕ`��
using ( var gl = HiGL.Begin( GLPrimType.Points ) ) {
for ( double x = 0.0 ; x < box.Upper.x ; x += delta ) {
gl.Vertex( _pos.x + (int)(x / unit), _pos.y );
}
for ( double x = 0.0 ; x > box.Lower.x ; x -= delta ) {
gl.Vertex( _pos.x + (int)(x / unit), _pos.y );
}
for ( double y = 0.0 ; y < box.Upper.y ; y += delta ) {
gl.Vertex( _pos.x, _pos.y - (int)(y / unit) );
}
for ( double y = 0.0 ; y > box.Lower.y ; y -= delta ) {
gl.Vertex( _pos.x, _pos.y - (int)(y / unit) );
}
}
// �ڐ��̐��l��`��
for ( double x = 2 * delta ; x < box.Upper.x ; x += 2 * delta ) {
DrawNumber( context, _pos.x + (int)(x / unit), _pos.y + 16, x );
}
for ( double x = -2 * delta ; x > box.Lower.x ; x -= 2 * delta ) {
DrawNumber( context, _pos.x + (int)(x / unit), _pos.y + 16, x );
}
for ( double y = 2 * delta ; y < box.Upper.y ; y += 2 * delta ) {
DrawNumber( context, _pos.x + 2, _pos.y - (int)(y / unit), y );
}
for ( double y = -2 * delta ; y > box.Lower.y ; y -= 2 * delta ) {
DrawNumber( context, _pos.x + 2, _pos.y - (int)(y / unit), y );
}
// ���x��̕`��
double radius = 100;
using ( var gl = HiGL.Begin( GLPrimType.LineStrip ) ) {
for ( int deg = 0 ; deg <= 90 ; deg += 5 ) {
double rad = Math.PI * deg / 180.0;
double x = _pos.x + radius * Math.Cos( rad );
double y = _pos.y - radius * Math.Sin( rad );
gl.Vertex( x, y );
}
}
using ( var gl = HiGL.Begin( GLPrimType.Points ) ) {
for ( int deg = 15 ; deg < 90 ; deg += 15 ) {
double rad = Math.PI * deg / 180.0;
double x = _pos.x + radius * Math.Cos( rad );
double y = _pos.y - radius * Math.Sin( rad );
gl.Vertex( x, y );
}
}
}
}
void OnSizeChanged( object sender, EventArgs e )
{
double ratio_x = _size.x > 0 ? (double)_pos.x / _size.x : _pos.x;
double ratio_y = _size.y > 0 ? (double)_pos.y / _size.y : _pos.y;
_size = _owner.Camera.ScreenSize;
_pos.x = (int)(ratio_x * _size.x);
_pos.y = (int)(ratio_y * _size.y);
this.FixPos();
}
public void Draw(ISceneContext context)
{
_size = context.Camera.ScreenSize;
using (var whole = context.Push()) {
whole.Color = Color.Gray;
whole.PointSize = 3;
whole.LineWidth = 1;
// X, Y 軸（直線）の描画
context.DrawLines(gl =>
{
gl.Vertex(0, _pos.y);
gl.Vertex(_size.x, _pos.y);
gl.Vertex(_pos.x, 0);
gl.Vertex(_pos.x, _size.y);
});
// 目盛の間隔
const int P0 = 16; // 目盛の最小ピクセル数
double unit = context.Camera.LengthPerPixel;
double exp = Math.Log10(P0 * unit);
double delta = Math.Pow(10, Math.Ceiling(exp));
if (delta / unit > 5 * P0)
{
delta /= 2;
}
Geom.Box2d box = new Geom.Box2d(
new Geom.Point2d(-_pos.x * unit, (_pos.y - _size.y) * unit),
new Geom.Point2d((_size.x - _pos.x) * unit, _pos.y * unit)
);
// 目盛を点列として描画
using (var gl = HiGL.Begin(GLPrimType.Points)) {
for (double x = 0.0; x < box.Upper.x; x += delta)
{
gl.Vertex(_pos.x + (int)(x / unit), _pos.y);
}
for (double x = 0.0; x > box.Lower.x; x -= delta)
{
gl.Vertex(_pos.x + (int)(x / unit), _pos.y);
}
for (double y = 0.0; y < box.Upper.y; y += delta)
{
gl.Vertex(_pos.x, _pos.y - (int)(y / unit));
}
for (double y = 0.0; y > box.Lower.y; y -= delta)
{
gl.Vertex(_pos.x, _pos.y - (int)(y / unit));
}
}
// 目盛の数値を描画
for (double x = 2 * delta; x < box.Upper.x; x += 2 * delta)
{
DrawNumber(context, _pos.x + (int)(x / unit), _pos.y + 16, x);
}
for (double x = -2 * delta; x > box.Lower.x; x -= 2 * delta)
{
DrawNumber(context, _pos.x + (int)(x / unit), _pos.y + 16, x);
}
for (double y = 2 * delta; y < box.Upper.y; y += 2 * delta)
{
DrawNumber(context, _pos.x + 2, _pos.y - (int)(y / unit), y);
}
for (double y = -2 * delta; y > box.Lower.y; y -= 2 * delta)
{
DrawNumber(context, _pos.x + 2, _pos.y - (int)(y / unit), y);
}
// 分度器の描画
double radius = 100;
using (var gl = HiGL.Begin(GLPrimType.LineStrip)) {
for (int deg = 0; deg <= 90; deg += 5)
{
double rad = Math.PI * deg / 180.0;
double x = _pos.x + radius * Math.Cos(rad);
double y = _pos.y - radius * Math.Sin(rad);
gl.Vertex(x, y);
}
}
using (var gl = HiGL.Begin(GLPrimType.Points)) {
for (int deg = 15; deg < 90; deg += 15)
{
double rad = Math.PI * deg / 180.0;
double x = _pos.x + radius * Math.Cos(rad);
double y = _pos.y - radius * Math.Sin(rad);
gl.Vertex(x, y);
}
}
}
}
