-
'
以下是窗体代码,在
VB6.0
调试通过:
'
一、必须在引用中勾选:
OLE
Automatuon
,否则
Img
As StdPicture
语句会出错
'
二、需在窗体放置以下
4
个控件,所有控件不用设置任何属性,均采用默认设置:
'
Picture1
,
Picture2
,
Timer1
,
Command1
(注意:在属性窗口将
Command1
的
Index
属
性设置为
0
)
'
三、为窗体添加一个名为
mFast
的菜单,再为
mFast
添加一个名为
mmFast
的下级子菜
单,并将
mmFast
的索引设置为
0
。
'
即:
mmFast
是以序号
0
开头的菜单数组控件的第一个。
Dim ctD() As tyD, ctDs As Long, ctB()
As Long, ctCenter As Long, ct3D As Boolean
Dim ctBi As Single, ctV As Single, ctBW
As Long, ctSeeJ As Long, ctTrack As Boolean
Dim ctSeeBi As Single, ctSet As
MenuSet, ctShowXX As Boolean, ctColorXX As Boolean
Dim ctP180 As Single, ctP90 As Single,
ctP270 As Single, ctP360 As Single
Dim
ctSmall() As tySmall, ctSmalls As Long, ctX() As
tyX, ctXs As Long, ctSize As Long
'
定义表示星星的数据类型
Private Type tyX
x As Single
y
As Single
r As Long
t As Long
Se As Long
End Type
'
定义表示天体的数据类型
Private Type tyD
Ji As Long
'
天体级别
Cap As String
'
天体名称
r As Long
'
天体半径(像素,下同)
a As Single
'
轨道:横半径
b As Single
'
轨道:纵半径
C As Single
'
轨道:焦点
e As Single
'
轨道:偏心率
Dip As Single
'
轨道:倾角
IsHui As Boolean
'
是否彗星
IsSmall As Boolean
'
是否小行星
Father As Long
'
父天体序号:轨道焦点上的天体
Se As Long
'
颜色
V As Single
'
运行角速度
Jiao As Single
'
某时刻的与父天体连线角度
x As Single
'
天体当前坐标
y As Single
xUp As Single
'
上一时刻坐标
yUp As Single
Visible As Boolean
'
是否显示:球体
ShowCap As Boolean
'
是否显示:标题
GuiDao As Boolean
'
是否显示:轨道
GuiJi As Boolean
'
是否显示:轨迹
Img As StdPicture
'
天体
3D
图像
LineFu As Boolean
'
与父天体的中心连线
End Type
'
定义小行星类型
Private Type tySmall
a As Single
'
轨道:横半径
b As Single
'
轨道:纵半径
Jiao As Single
End Type
Enum
MenuSet
'
以下为
选项菜单
标示
ms_Size = -11
'
设置字体大小
ms_RunStop = -10
'
开始
/
暂停
ms_3D = -9
'3D
立体图像
ms_ColorXX = -8
'
是否显彩色星星
ms_ShowXX = -7
'
是否显示闪烁的星星
ms_DefSet = -6
'
默认设置
ms_Track = -5
'
轨迹:显示
/
隐藏
'
以下为
菜单全选、全不选
ms_Wei = -4
ms_Xing = -3
ms_All = -2
ms_NoAll = -1
'
以下为
按钮
标示
ms_Step = 0
'
步进,下一位置
ms_UnRun
'
后退
ms_Opt
'
显示选项菜单
ms_Center
'
参照系
ms_Visible
'
天
体:显示
/
隐藏
ms_ShowCap
'
天体名称
ms_GuiDao
'
轨道
ms_GuiJi
'
轨迹
ms_LineFu
'
与父天体的中心连线
ms_Bi
'
缩放比
ms_V
'
速度
ms_SeeJ
'
视角
End Enum
Private
Declare
Function
GdiTransparentBlt
Lib
(ByVal
hdc1
As
Long,
ByVal
X1
As
Long, ByVal
y1 As Long, ByVal W1 As Long, ByVal H1 As Long,
ByVal Hdc2 As Long, ByVal
X2 As Long,
ByVal Y2 As Long, ByVal W2 As Long, ByVal H2 As
Long, ByVal Color As Long)
As Long
Private Sub Form_Load()
ode = 3: n =
太阳系行星运行演示
e = False: ctP180 = 3.1415926
ctP90 = ctP180 * 0.5:
ctP360 = ctP180 * 2: ctP270 = ctP90 * 3
al = 25:
d = True
Call Init
'
窗体大小为屏幕的
3/4
,居中
* 0.1, * 0.1, * 0.8,
* 0.8
End Sub
Private Sub Form_Resize()
Dim I As Long, L As Single, t As
Single, H As Single, H1 As Single, W As Single
'
设置控件位置
H1 = ight(
L = 3
For I = 0 To - 1
W = dth(Command1(I).Caption &
Command1(I).Move L,
t, W, H1 * 2
L = L +
W + 3
Next
t = t * 2 +
Command1(0).Height: H = eight - t
If H > 0 Then 0, t, idth, H
'
将
Picture1
的中心设置为坐标原点
ode = 3
eft =
-idth * 0.5
op = -eight
* 0.5
Call Run1
End Sub
Private Sub Init()
'
初始化天体参数
Dim I As Long, K As
Long, S As Long
ctBW = 0
' 40
'
四周边界空白区,仅用于调试。调试完毕应设为
0
。调试代码
****
draw = True: lor =
&H180000
ode = 3
Style =
0: ode = 3
draw = True:
e = False
lor = lor
ctSize = 9
ctCenter = 0: ctBi = 1:
ctV = 1
'
参照系(位于中心的天体)
,缩放比列,速度
ctSeeJ = 30: ctSeeBi = ctSeeJ / 90
'
视点角度,视角比
ctTrack = False
'
默认:不显示运动轨迹(不是轨道)
ct3D = True
'
默认:
3D
立体图像
ctShowXX = True
'
默认:显示闪烁的星星
Call RndXX
'
初始闪烁的星星
'
添加按钮
KjCls Command1: Command1(0).BackColor =
lor
KjAdd Command1,
选项
(&O)
设置选项
KjAdd Command1,
< br>进
(&W)
步进,运行到下一位置
KjAdd Command1,
退
(&T)
步进,后退到上一位置
KjAdd
Command1,
参照系
(&C)
设置参照系(位于中心的天体)
KjAdd Command1,
天体
(&X)
天体:显示
/
隐藏
KjAdd Command1, <
/p>
名称
(&M)
天体名称:显示
/
隐藏
KjAdd Command1,
轨道
(&D)
天体运行轨道:显示
/
隐藏
KjAdd
Command1,
轨迹
(&J)
运
动轨迹,选中
“
选项
-
显示运动轨迹
”
时有效
KjAdd Command1,
连线
(&L)
与父天体的中心连线,同时显示对应天体时
有效
KjAdd Command1,
速度
(&V)
,
设置速度
KjAdd Command1,
视角
(&S)
设置视点角度
KjAdd Command1,
缩放
(&F)
设置缩放比列
'
添加天体(演示比列状态下)
,半径以
100
像素为标准
< br>'
参数依次是:名称,父天体名称,天体半径,轨道长半轴,轨道偏心率,运动角
速度,轨
道倾角,天体颜色,初始角度,彗星否
ctDs = -1: ReDim ctD(0
To 0)
AddCircle
太阳
AddCircle
水星
AddCircle
金星
AddCircle
地球
AddCircle
月亮
地球
' <
/p>
ctD(CapToNum(
月亮
调试代码
****
AddCircle
嫦娥
1
号
月亮
AddCircle
火星
AddCircle
火卫
1
火星
AddCircle
火卫
2
火星
AddCircle
小行星
'
小行星轨道倾角多少?
ctD(CapToNum(
小行星
AddCircle
木星
AddCircle
木卫
1
木星
AddCircle
木卫
2
木星
AddCircle
木卫
3
木星
AddCircle
木卫
4
木星
AddCircle
土星
AddCircle
土卫
6
土星
AddCircle
天王星
AddCircle
天卫
3
天王星
AddCircle
天卫
4
天王星
AddCircle
海王星
AddCircle
海卫
1
海王星
AddCircle
哈雷彗星
ctD(CapToNum(
哈雷彗星
'
初始化小行星
For K = 0 To ctDs
If ctD(K).IsSmall
Then
ctD(K).GuiDao
= False: ctSmalls = 90
'
小行星
总个数
S = ctD(K).b * 0.07
' 12
'
小行星带宽度
ReDim ctSmall(0 To
ctSmalls)
ctSmall(0).a = ctD(K).a: ctSmall(0).b =
ctD(K).b
For I = 1
To ctSmalls
Randomize I
ctSmall(I).a = Rnd * S - S * 0.5 +
ctD(K).a
ctSmall(I).b = Rnd * S - S * 0.5 +
ctD(K).b
ctSmall(I).Jiao = Rnd * ctP360
Next
Exit For
End If
Next
Call
SortB
'
将天体按轨道短半径从小到大排序
,用数组
ctB()
记忆排序结果(天体序
号)
Call DrawAllBall
'
绘制所有天体的
3D
立体图像,存入天体变量
ctD(I).Img
Call Form_Resize
End Sub
Private Sub RndXX()
Dim I As Long, J As Long
ctXs = 90
'
闪烁的星星个数
ReDim ctX(0 To ctXs)
For I = 0 To ctXs
Randomize I
ctX(I).x
=
Rnd
*
/
erPixelX
-
/
erPixelX * 0.5
ctX(I).y
=
Rnd
*
/
erPixelY
-
/
erPixelY * 0.5
Randomize
ctX(I).r = 2 * Rnd: ctX(I).t = 6 * Rnd
If ctColorXX Then
ctX(I).Se =
&HFFFFFF * Rnd
Else
J = 255 * Rnd:
ctX(I).Se = RGB(J, J, J)
End If
Next
End Sub
Private
Sub DrawAllBall(Optional I As Long = -1, Optional
ShowInf As Boolean)
'
绘制所有天体的
3D
球形图像
Dim r As Long, nStr As
String, x As Single, y As Single
If I > -1 Then GoSub SubDraw1: Exit Sub
ointer = 11
= 32
For I =
0 To ctDs
If ShowInf
Then
If I = 0 Then
nStr =
nStr =
正在更新图像
x =
-dth(nStr) * 0.5: y = -ight(nStr) * 0.5
(x, y)-Step(-x *
2, -y * 2), &H776633, BF
tX = x: tY = y
nStr
h
End If
GoSub SubDraw1
Next
0, 0, 2, 2
ointer = 0
'
doe
Exit Sub
SubDraw1:
r = ctBi * ctD(I).r
If r < 2 Then r = 2
DrawBall r, r, r, &HFFFFFF, ctD(I).Se
Set ctD(I).Img =
Return
End
Sub
Private Sub DrawBall(r
As Long, ByVal x0 As Long, ByVal y0 As Long, Se1
As Long, Se2 As
Long)
'
画一个立体球图案
Dim GDs As Long, r0 As
Single, rG As Single
Dim
StepR As Single, StepG As Single, StepB As Single
Dim x As Long, y As
Long, X1 As Long, y1 As Long, Bi As Single
Dim R1 As Long, G1 As
Long, B1 As Long, R2 As Long, G2 As Long, B2 As
Long
GetRGB Se1, R1, G1, B1: GetRGB Se2, R2,
G2, B2
= r * 2 + 1: = r * 2 +
1
GDs = 6
'
与背景的过渡带
X1 = r *
0.6: y1 = r * 0.6
'
高光中心点
rG = Sqr((X1 - x0) ^ 2 +
(y1 - y0) ^ 2)
'
高光
与
中心
的距离
StepR = R2 - R1: StepG =
G2 - G1: StepB = B2 - B1
For y = 0 To eight
For x = 0 To idth
r0 = Sqr((x - x0) ^ 2
+ (y - y0) ^ 2)
If r0
> r Then GoTo Next1
'
在球外
r0 = Sqr((x - X1) ^ 2
+ (y - y1) ^ 2)
Bi =
r0 / (r + rG)
If Bi >
1 Then GoTo Next1
(x, y), RGB(R1 + StepR * Bi, G1 + StepG * Bi, B1 +
StepB * Bi)
Next1:
Next
Next
'
e = True
End Sub
Private
Sub Command1_Click(Index As Integer)
Dim I As Long, J As Long, nStr As
String, Zu As Variant
Dim nSel As Long, nAll As Long, nNo As
Long
ctSet = Val(Command1(Index).Tag)
'
得到按钮标示
KjCls mmFast
'
清除菜单
'
装载快捷菜单,并勾选选定项目
Select Case ctSet
Case ms_Step
'
步进,前进到下一位置
If Not d Then Run1
True
d = False
Case ms_UnRun
'
步进,后退到下一位置
If Not d Then Run1
True, True
d = False
Case ms_Bi
'
缩放比列
Zu = Array(0.1, 0.2, 0.3, 0.4,
KjAddZu mmFast, Zu,
ctBi,
倍
'
添加数组菜单,并勾选
ctBi
Case ms_SeeJ
'
视点角度
Zu = Array(
度(天球北极)
度
度
度
度
度
度
度
度
度
度
< br>度
度
度
度(天球赤道)
KjAddZu mmFast, Zu, ctSeeJ:
GoTo Show1
'
添加数组菜单,并勾选
ctSeeJ
Case ms_V
'
速度
Zu = Array(0.1, 0.2, 0.3, 0.4,
KjAddZu mmFast, Zu,
ctV
,
倍
Case ms_Opt
'
选项
I = KjAdd(mmFast,
状态
mmFast(I).Checked = d
If d Then mmFast(I).Caption =
状态:
运行中
=
状态:已暂停
mmFast(I).Caption = mmFast(I).Caption &
(双击图像区可改变状态)
I
=
KjAdd(mmFast,
用
3D
立体图像显示天体
ms_3D):
mmFast(I).Checked
=
ct3D
I =
KjAdd(mmFast,
闪烁的星星
I = KjAdd(mmFast,
彩色小星星
(同时选中
“
闪烁的星星
”
时有效)
mmFast(I).Ch
ecked = ctColorXX
I =
KjAdd(mmFast,
显示运动轨迹
KjAdd mmFast,
字体大小:
KjAdd mmFast,
KjAdd mmFast,
恢复默认设置
GoTo Show1
Case Else
'
装载天体名称
For I = 0 To ctDs
J = Ji(I)
'
天体
I
的级别
KjAdd mmFast,
Next
End
Select
'
勾选选定天体
Select Case ctSet
Case ms_Center:
mmFast(ctCenter).Checked = True: GoTo Show1
'
参照系(中心天体)
Case ms_ShowCap
'
显示天体名称
For I = 0 To ctDs:
mmFast(I).Checked = ctD(I).ShowCap: Next
Case ms_Visible
'
天体
是否可见
For I = 0 To ctDs: mmFast(I).Checked =
ctD(I).Visible: Next
Case ms_GuiDao
'
轨道
For I = 0 To ctDs: mmFast(I).Checked =
ctD(I).GuiDao: Next
Case
ms_LineFu
'
连线
For I = 0 To ctDs:
mmFast(I).Checked = ctD(I).LineFu: Next
Case ms_GuiJi
'
轨迹
For I = 0 To ctDs: mmFast(I).Checked =
ctD(I).GuiJi: Next
Case
ms_Opt
'
选项
Case Else: Exit Sub
End Select
KjAdd mmFast,
nAll = KjAdd(mmFast,
全选
KjAdd mmFast,
行星
KjAdd mmFast,
卫星
nNo = KjAdd(mmFast,
全不选
For I = 0 To ctDs
If mmFast(I).Checked Then nSel = nSel +
1
Next
If nSel = 0 Then mmFast(nNo).Checked =
True: mmFast(nNo).Enabled = False
If nSel = ctDs + 1 Then
mmFast(nAll).Checked = True: mmFast(nAll).Enabled
= False
Show1:
Command1(Index).BackColor = &HFFCCCC
'
将选中按钮设置为淡蓝色
enu
mFast,
,
Command1(Index).Left,
Command1(Index).Top
Command1(Index).Height - 3
Command1(Index).BackColor = lor
End Sub
Private
Sub mmFast_Click(Index As Integer)
'
通过快捷菜单设置天体有关参数
Dim nTag As MenuSet, I
As Long, nStr As String
+
nTag =
Val(mmFast(Index).Tag)
'
菜单标示:
ms_All
全选,
ms_NoAll
全不选
Select Case ctSet
'ctSet
:按钮标示,在
Command1_Click
中设置
Case ms_Opt
'
选项
菜单
Select Case nTag
Case ms_RunStop: d = Not d
'
运动
/
暂停
Case ms_ShowXX:
ctShowXX = Not ctShowXX
'
显示闪烁的星星
Case ms_ColorXX:
ctColorXX = Not ctColorXX: Call RndXX
'
重新初始闪烁的星星
Case ms_3D:
ct3D = Not ct3D
'3D
立体图像
Case ms_Track:
ctTrack =
Not ctTrack
'
运动轨迹
Case ms_DefSet:
Call Init
'
默认设置
Case ms_Size
'
设置字体
nStr =
InputBox(
设置天体名称字体大小,范围
3-300
:
字体大小<
/p>
If nStr
=
I = Val(nStr)
If I < 3 Or I >
300 Then Exit Sub
ctSize = I
End Select
Case ms_V
'
速度
ctV = Val(mmFast(Index).Caption)
Case ms_SeeJ
'
视点角度
ctSeeJ = Val(mmFast(Index).Caption)
'
视点角度
ctSeeBi = ctSeeJ / 90
'
视角比
For I = 0 To ctDs: ctD(I).xUp = 0:
ctD(I).yUp = 0: Next
Case ms_Bi
'
缩放比列
ctBi = Val(mmFast(Index).Caption)
For I = 0 To ctDs:
ctD(I).xUp = 0: ctD(I).yUp = 0: Next
Call DrawAllBall(, True)
'
绘制所有天体的球形图像
Case ms_Center
'
参照系(中心天体)
ctCenter = Index
For I = 0 To ctDs:
ctD(I).xUp = 0: ctD(I).yUp = 0: Next
Case ms_ShowCap
'
显示名称
If Index <= ctDs Then
ctD(Index).ShowCap = Not
ctD(Index).ShowCap
Else
For I = 0 To ctDs: ctD(I).ShowCap =
OptSet(I, nTag): Next
End If
Case
ms_Visible
'
天体
是否可见
If Index <= ctDs Then
ctD(Index).Visible = Not
ctD(Index).Visible
Else
For I = 0 To ctDs: ctD(I).Visible =
OptSet(I, nTag): Next
End If
Case
ms_GuiDao
'
轨道