File:Pm1234 Ground.png

頁面內容唔支援其他語言。
出自維基百科,自由嘅百科全書

原本檔案(2,400 × 1,800 像素,檔案大細:302 KB ,MIME類型:image/png

Cahid
Ceferliheiuosaxhesanoxlı1: I 82fjwrileehepe epejejrie be jeihejepebejeosvjspsisso. Sisibssivgtbhbt

摘要

描述
English: Terms and partial sums of 1 − 2 + 3 − 4 + · · · going out to the horizon.
  • The terms are indicated as black lines executing displacements to the camera's right, plus a constant displacement away from the camera.
  • The partial sums are where the terms end; they are indicated as black circles.
  • The action takes place on an infinite horizontal plane. The integers are located on the gray lines. The horizon is picked out by a bluish sky.
  • The camera type is rectangular perspective. Of course, it is placed over x equal 1/4 for symmetry.
Português: Termos e somas parciais de 1 − 2 + 3 − 4 + · · · dirigem-se para o horizonte.
  • Os termos são indicados por linhas pretas executando deslocamentos à direita da câmara, mais um deslocamento constante para longe da câmara.
  • As somas parciais estão onde os termos terminam; elas estão indicadas por círculos pretos.
  • A ação ocorre sobre um plano horizontal infinito. Os números inteiros estão localizados sobre as linhas cinzas. O horizonte é reconhecido por um céu azulado.
  • O tipo da câmara é de perspectiva retangular. Claro que, é colocado sobre x igual a 1/4 para a simetria.
日期
來源 Self-made by user in Povray. See source code below.
作者 user:Melchoir

POV-Ray source

Warning: this scene requires a lot of antialiasing, and it is slow.

camera { 
	location <.25, 4, -4.5>
	up y*image_height right x*image_width angle 65 look_at <.25, 0, 10>
}
background { rgb 1 }

#declare an = 0;
#declare sn = 0;
#declare snn = 0;
union {
	#declare n=1;
	#while (n<15000)
		#declare an = n * pow(-1, n+1);
		#declare snn = sn;
		#declare sn = sn + an;
		cylinder { 0, z*sqrt(1+an*an), .1 scale <1, 0.3/sqrt(n), 1>
			rotate y*degrees(atan(an)) translate <snn, 0, n>
		}
		sphere { <snn, 0, n>, .2 scale <1, 0.3/sqrt(n), 1> }
		#declare n=n+1;
	#end
	pigment { color rgb 0 }
}

intersection {
	plane { y, .01/(n*n) pigment { color rgb 0 } }
	plane { -z, -n  }
	plane { -x, 0 rotate y*-degrees (atan (.5)) translate <0, 0, 1> }
	plane { x, 0 rotate y*degrees (atan (.5)) translate <1, 0, 2> }
	pigment { color rgbt 1 }
}

plane {
	y, 0
	pigment {
		gradient x
		color_map { 
			[0 rgbt .5]
			[0.024 rgbt .5]
			[0.025 rgbt 1]
			[0.975 rgbt 1]
			[0.976 rgbt .5]
			[1 rgbt .5]
      }
	}
}
plane { -y, -5 pigment { color rgbf <.9, .9, 1, .9> } }

協議

I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head 根據自由軟體基金會發佈嘅無固定段落、封面文字同封底文字GNU自由文件授權條款第1.2或打後嘅版本,你獲授權可以重製、散佈同埋修改爾份文件。授權條款嘅副本喺章節GNU自由文件授權條款
w:en:Creative Commons
署名 相同方式分享
呢個檔案用共享創意 姓名標示-非商業性-相同方式分享3.0 未本地化版本條款授權。
你可以:
  • 去分享 – 複製、發佈同傳播呢個作品
  • 再改 – 創作演繹作品
要遵照下面嘅條件:
  • 署名 – 你一定要畀合適嘅表彰、畀返指向呢個授權條款嘅連結,同埋寫明有無改過嚟。你可以用任何合理方式去做,但唔可以用任何方式暗示授權人認可咗你或者你嘅使用方式。
  • 相同方式分享 – 如果你用任何方式改過呢個作品,你必須要用返原本或者相似嘅條款發佈。
This licensing tag was added to this file as part of the GFDL licensing update.
w:en:Creative Commons
署名 相同方式分享
This file is licensed under the Creative Commons Attribution-Share Alike 2.5 Generic, 2.0 Generic and 1.0 Generic license.
你可以:
  • 去分享 – 複製、發佈同傳播呢個作品
  • 再改 – 創作演繹作品
要遵照下面嘅條件:
  • 署名 – 你一定要畀合適嘅表彰、畀返指向呢個授權條款嘅連結,同埋寫明有無改過嚟。你可以用任何合理方式去做,但唔可以用任何方式暗示授權人認可咗你或者你嘅使用方式。
  • 相同方式分享 – 如果你用任何方式改過呢個作品,你必須要用返原本或者相似嘅條款發佈。
你可以揀你想用嘅牌照。

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

圖中顯示嘅係

5 3 2007

檔案歷史

撳個日期/時間去睇響嗰個時間出現過嘅檔案。

日期/時間縮圖尺寸用戶註解
現時2007年4月15號 (日) 02:37響2007年4月15號 (日) 02:37嘅縮圖版本2,400 × 1,800(302 KB)NorthgroveRevised version for a smaller file size and no perceptible quality change. (bit depth change and higher PNG compression)
2007年3月5號 (一) 02:16響2007年3月5號 (一) 02:16嘅縮圖版本2,400 × 1,800(705 KB)MelchoirTerms and partial sums of 1 − 2 + 3 − 4 + · · · going out to the horizon, in rectangular perspective. ==POV-Ray source== <pre> camera { location <.25, 4, -4.5> up y*image_height right x*image_width angle 65 look_at <.25, 0, 10> } background { r

以下嘅1版用到呢個檔:

全域檔案使用情況

下面嘅維基都用緊呢個檔案:

睇呢個檔案嘅更多全域使用情況