'初二,今天老师在讲轴对称的时候顺便课外扩充了一下圆的组成
‘(围绕一个点并以一定长度为距离旋转一周所形成的封闭曲线叫作圆)
'然后就顺便说到了在数学中,只要确定圆心坐标,角度和半径就可以通过正弦函数和余弦函数获取圆上任意一点坐标
'我就突然想到了,计算机和数学应该是相通的,这玩意好像可以拿来画加载中的旋转圆圈
'帧率还不够,等周末优化一下封装成一个命令
#code=936ENVI^ ForceLocal=1ENVI^ EnviMode=1ENVI^ Alias -opt Ellipse=CALL $--qd# --ret:* Gdi32,Ellipse,*dummy,’LOGS * CONOUT$
SET &I=0ENVI angle=1SET &w=10SET &h=10 SET &x0=130SET &y0=130SET &aw=2SET &ah=2TEAM set &L=| SET &T=| SET &R=| SET &B=TEAM SET &L0=0| SET &T0=0SET &angle=1
//决定旋转速度ENVI num=5
CALL WIN1
_SUB WIN1,W260H320,加载条演示, Envi @this.Paint=OnPaint TIME &Timer1,50, ENVI @this.InvalidateRect=;;;230; //0_END
_SUB OnPaint CALC w=15 CALC h=15 CALC x0=130 + 60 * cos(%angle% * PI / 180) CALC y0=130 + 60 * sin(%angle% * PI / 180) CALC angle=%angle% + %num% CALC #L=%x0%-%w% - %L0% CALC #T=%y0%-%h% CALC #R=%x0%+%w% - %L0% CALC #B=%y0%+%h% Ellipse %1,%L%,%T%,%R%,%B%
CALC angle=%angle%+60 CALC w=12 CALC h=12 CALC x0=130 + 60 * cos(%angle% * PI / 180) CALC y0=130 + 60 * sin(%angle% * PI / 180) CALC angle=%angle% + %num% CALC #L=%x0%-%w% - %L0% CALC #T=%y0%-%h% CALC #R=%x0%+%w% - %L0% CALC #B=%y0%+%h% Ellipse %1,%L%,%T%,%R%,%B% CALC angle=%angle%-60
CALC angle=%angle%+120 CALC w=9 CALC h=9 CALC x0=130 + 60 * cos(%angle% * PI / 180) CALC y0=130 + 60 * sin(%angle% * PI / 180) CALC angle=%angle% + %num% CALC #L=%x0%-%w% - %L0% CALC #T=%y0%-%h% CALC #R=%x0%+%w% - %L0% CALC #B=%y0%+%h% Ellipse %1,%L%,%T%,%R%,%B% CALC angle=%angle%-120
CALC angle=%angle%+180 CALC w=9 CALC h=9 CALC x0=130 + 60 * cos(%angle% * PI / 180) CALC y0=130 + 60 * sin(%angle% * PI / 180) CALC angle=%angle% + %num% CALC #L=%x0%-%w% - %L0% CALC #T=%y0%-%h% CALC #R=%x0%+%w% - %L0% CALC #B=%y0%+%h% Ellipse %1,%L%,%T%,%R%,%B% CALC angle=%angle%-180
CALC angle=%angle%+240 CALC w=6 CALC h=6 CALC x0=130 + 60 * cos(%angle% * PI / 180) CALC y0=130 + 60 * sin(%angle% * PI / 180) CALC angle=%angle% + %num% CALC #L=%x0%-%w% - %L0% CALC #T=%y0%-%h% CALC #R=%x0%+%w% - %L0% CALC #B=%y0%+%h% Ellipse %1,%L%,%T%,%R%,%B% CALC angle=%angle%-240_END