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ArcGIS实验操作(七)山顶点的提取数据:在data/Ex7/文件下 DEM:研究地区DEM数据。 Result文件夹存放结果数据,包括:contour15.shp : 15m等高距的等高线图;contour75.shp : 75m等高距的等高线图; hillshade :地形光照晕渲图;back :地形背景掩膜;Peak.shp:山顶点分布图;要求:应用栅格数据空间分析模块中的等高线提取功能,分别提取等高距为15米和75米的等高线图,并按标准地形图绘制等高线方法绘制等高线,作为山顶点 提取的地形背景通过邻域分析和栅格计算器提取山顶点操作步骤:1.加载Spatial Analyst模块和 DEM 数据2.设置工作环境:区WorkingW|Analysis mask:D: datEx7Xlle5ultAxtalysi e Coariinat ft Systemf* Analysi a output, will be saved in the 宜呦启 coordinate system &e the input (or first raster input if there are multiple(1 Analysi e output will be saved in the ws輕 coordinate system as th.e activ data Ci splay war nine message i raster inpiits have to be projduring istlJ簟ei:e确定Option?Gentral 血 twd Cll Si zeContour:3.单击Spatial Analyst下拉箭头,选择 Surface Analysis子菜单,并单击Spatial Analyst L锣ef : demDi stwee卜Density.Interpolate to RasterXSurface AnslyEis卜Contowr,.Cell Siatisties. r, neighborhood Statist! cs.Zonal Statist! ce. , TSlope.Aspects jjillsW Vi ewshed. F .Cat/Fill .Ruelassi fy.Easter Calculator.ConvertOj tioins. _ P提取等高距为15米的等高线数据,输出图层为Contour15 :* SWJ8 -irclau|曰刈甘1电工臼ii:旳和 电Hcrn 0*1 鼻 Tandn jlp b? h ais x “* h:i3.is 3 弟就口卜i皤 回g.:説糾畤 护k b帥刍Editor 卜 沪卜| 九口:: |Ctf.tt Sh FiitiirtU T址和 1: |三(Sp*lb*L Alyxt b聊F |d*R漲 F.-L7F53 01 Eo.Laur!l5T O AikVkI-em-Hi 虫.M53 TB I L - fl*6 STS00J.0d去融容AtcYl團卜,* S4lJS - A. 加oil4120T9.70 1162662: VttrsKtflkm ldytr fifH d*tk4.同上,修改Contour interval为75米,提取等高距为75米的等高线,输出文件名为Contour75。修改图例颜色以区别等高线显示效果,单击contour15数据层线状图例,弹出symbol selector对话框,选择显示颜色为灰度60 % (可任意选择),并点击ok。l:L3.1创* Q !回:當烈鼻护kG科刍El. ESi t Ya rwr-1 i-cii crn TmI-k Ta-ndci |flpLqnir : I dm-0 tHLUurlSS El toVaIvk_ Jiiffc - 1153 75Le4 - 3i& 372工1J勺-工:;匕JlLEbnerir ELmpEkTX t5 5fl*7JALlaf-aiXl.帀XSyabulQiALL亡til亡 L*u SUrtCkt aary1PKail Ai&.Lj 1; C-1. - U V, HtatL juiilJj Colorilu tMTL-LLStJIit U IQIIBHT i V 4 Bturilu-Jg1LIL一DLEflty 1叫 u * * - A-|硏衲亨|lF *o j gA生仝 p酮2005. EL =0 , 单击ok。提取有效数据区域,作为等高线三维背景掩膜。双击back数据层,在弹出的属性对话框的Display属性页设置透明度为60%,在symbologyI Symbology | Fields Jsins & RelatesLayer PropertiesGeneral Sowrce Extent Display厂 hiQW Map Tipsprimary dli splay i厂 Di splay rast电厂 resolution, in table 厂 illow interactive di splay for Effects toolb=昼裁卯p“ during display using: |Neesf Neiibor (for direte data)二Transparent: | 6Q %Display Quali tyCfliarse Medium Normal确定取消 I 亟按contour75、contour15、back、Hillshade次序放置数据层,生成三维立体等高线图,如 下:无特老 ArcEap Acclnf o回冈DisplayI Wet* |3H2.75 11t260:3 % Voters( h aa硏念厂机尊口“烷通直:器紳馳時护ko码色Edaio 卜护zl3叫母Tll: jJ弘就!i*l nlyxt tI聊厂 |dw*漲Ett 旳 wiicti an E-alx T3TbdE4 jlp-Lrr53 01 Ea.Laur7?T 0 tMLlaurl寻m Bl Wk lB 9 hillxhjidtVdiuiMifji : 254 :Lh :心9 4wVdiui-ML无标老 ArcEapAcclnf o回冈无标老 ArcEapAcclnf o回冈二|lr*r5旦 El rwLaurTS-0 tHLUurlS 949 963TO? 口 ST2.B09LI 前2 W9J445 - m 為爾 刪.2966 - iM 3 L,DIT.9Q4S57 - Jadl 55 L.O4L 磁嘶-1感 20 L. DG3.21X750. - _0B.IM 口曲5 &岭3特-149U Lr IOS. 4*L - 1,131. L44O I.L31. JnJ - J. 3E3.791 Mkhilkh胡中MlfU : 254Lm :也耳 MiH : 3IE3 791 : 94fi.3T2DisplayJO72I和加的.起41杞5擴35 Vttrs无标老 ArcEapAcclnf o回冈8. 单击Spatial Analyst下拉箭头,选择 Raster Calculator,输入计算公式:SD = (Maxpo int DEM) = 0,提取山顶点区域。无标老 ArcEapAcclnf o回冈无标老 ArcEapAcclnf o回冈无标老 ArcKapAcclnf 回冈t 旳 wiicti an E-alx T3TbdE4 jlpD H S16 X “* |l:iw 3 惚嬴口卜I烷 迫H:訂烈冲护k斡刍fjEdiioi * 卜 T11: |Ctf*tt Sh FiitiirtT址和 1: |TSplb*L AA*lyxt t 聊| d*匸 漲 Z-fp L75 弓回naLaurTStMLlaur】5axpoim 949 9G3 3CB7 - 3TZ.ED 济芒閒91临-隔.25 996. ZW9V5S - l.Qlt. JET W4ST -匕0 L 0.552644 = j.CBS Lr DG3. aOQElje - 3.OEE汩汕环-i. iceO LalDB. EL与-1.11. 口 Lr L3J J444S -齐】53WkhillsbtdtVdLi州世 S* i : a 口 dt9 Hi# 1153 79Qma( *Ae-:ji-c4?i sw 巧 恤 二| E I D 生密切t 亠” 乳锻“上幫二犬乜IkT无倔- A.fill i-ELdvrSiJ 中肚鈕雪軽i未齡書画图 匚:Arc刊m 013u瓏七匚*审L:0*无标老 ArcKapAcclnf 回冈9. 选择SD数据层,单击 Spatial Analyst下拉箭头,选择 Reclassify,设置如下:11.选择RE_SD数据层,单击 Spatial Analyst下拉箭头,选择 Covert子菜单并单击 Raster toFeatures,参数设置如下,输出几何类型选择point,则可输出矢量山顶点数据peak。可区Raster to Features符号化显示如下:Jl/u
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