|
Last change
on this file since 3821 was
2696,
checked in by kanani, 7 years ago
|
|
Merge of branch palm4u into trunk
|
|
File size:
433 bytes
|
| Line | |
|---|
| 1 | function Update_SUN( ) |
|---|
| 2 | |
|---|
| 3 | global TIME SUN |
|---|
| 4 | |
|---|
| 5 | SunRise = 4.5; |
|---|
| 6 | SunSet = 19.5; |
|---|
| 7 | Thour = TIME/3600.; |
|---|
| 8 | Tlocal = Thour - floor(Thour/24)*24; |
|---|
| 9 | |
|---|
| 10 | if ( (Tlocal>=SunRise) & (Tlocal<=SunSet) ) |
|---|
| 11 | Ttmp = (2.0*Tlocal-SunRise-SunSet)/(SunSet-SunRise); |
|---|
| 12 | if (Ttmp>0) |
|---|
| 13 | Ttmp = Ttmp*Ttmp; |
|---|
| 14 | else |
|---|
| 15 | Ttmp = -Ttmp*Ttmp; |
|---|
| 16 | end |
|---|
| 17 | SUN = ( 1.0 + cos(pi*Ttmp) )/2.0 ; |
|---|
| 18 | else |
|---|
| 19 | SUN = 0.0; |
|---|
| 20 | end |
|---|
| 21 | |
|---|
| 22 | return % Update_SUN |
|---|
| 23 | |
|---|
Note: See
TracBrowser
for help on using the repository browser.
