ArcGIS_4 寻找最佳路径

වড়ᅲд4˖ᇏᡒ᳔ՇᲳᕘ

1ˊྐ᱃

╓؄ࠂӮඓ⌢থሩ◄∖ˈ݀ᲳՈₑᡅᗻ᮹֎ᦤʌDŽ೼ϔѯѸỞ⃴থẂՈഄऎˈ݀Ჳᓎ᪂ắ೼׍دDŽབԩḍ᥂ᅲ┉ഄᔶᚙމ᪂ᩥߎ↨ṇড়ˊՈ݀ᲳᢈߦˈᰃϔϾؐᕫۘऺՈ⒲LDŽ2ˊֲՈ

ỞẋඇдˈcᙝArcGISᷙḐ᭄᥂Სࡿࠊ೒ǃᜬ☦ߚᵤǃ៤ᴀᴗₑᲡࡿǃ᭄᥂ₑߚିǃ᳔ڱᲳᕘ਍ाⒸߚᵤࡳ࿁ˈcඇᥠᦵ߽ϬArcGISᅲɴϞẴाⒸߚᵤࡳ࿁ˈߚᵤ੠໘ˊିԐᇏᡒ᳔ՇᲳᕘՈᅲ┉ᑨϬ⒲LDŽ

3ˊ᭄᥂

˄1˅dem˄ʌ᭄࣏᥂˅DŽ

˄2˅startPot˄Ჳᕘ⑤⚍᭄᥂˅DŽ

˄3˅endPot˄Ჳᕘඌ⚍᭄᥂˅DŽ

˄4˅river˄ᇣ⌕ඳ᭄᥂˅DŽ

4ˊᡅ∖

1˅ᮄᓎᲳᕘ៤ᴀṇᇥDŽ

2˅ᮄᓎᲳᕘЎṇڱᲳᕘDŽ

3˅ᮄᓎᲳᕘՈọᢽᑨ᪩ὃᓔЏᑆ⊇⌕ˈҹޣᇥ៤ᴀDŽ

4˅ᮄᓎᲳᕘՈ៤ᴀ᭄᥂ᩥਜ਼ᯊˈ໇ᔕࠄ⊇⌕៤ᴀ(reclass_river˅ᰃᲳᕘ៤ᴀЁṇ݇⏲಴௤ˈܜᇚവᑺ᭄᥂˄reclass_slope˅੠᰻ӣᑺ᭄᭄᥂(reclass_QFD)ᣝ+0.6˖0.4ᴗₑড়ᑊˈ✊ৢϢ⊇⌕៤ᴀ԰਍ᴗₑՈࡴ੠ড়ᑊˈ݀ᓣᦣẴབϟ˖

Cost=reclass_river+(reclass_slope*0.6+reclass_QFD*0.4)

5˅ᇏᡒ᳔ڱᲳᕘՈᅲɴ◄ᡅẔϬArcGISՈाⒸߚᵤ˄Spatial Analyst˅ЁᲡࡿࠊ೒ЁՈ៤ᴀࠊ೒ঞ᳔ڱᲳᕘǃᜬ☦ߚᵤЁՈവᑺᩥਜ਼ঞ᰻ӣᑺᩥਜ਼ǃₑߚିঞᷙḐᩥਜ਼఼਍ࡳ࿁ᅠ៤DŽ

6˅ᦤѸᇏᡒࠄՈ᳔ڱᲳᕘᲳඃ೒DŽ

5ˊᅲɴ⌕࣏

ArcGISЁᅲɴ᳔ՇᲳᕘߚᵤˈŊܜ߽Ϭʌ᭄࣏᥂⌒ϣߎവᑺ᭄᥂ҹঞ᰻ӣᑺ᭄᥂DŽ✊ৢₑߚି⌕ඳ᭄᥂ǃവᑺǃ᰻ӣᑺ᭄᥂▊ּৠՈ਍൫ᇇೈˈݡᣝ+ϞẴ᭄᥂▊೼ᲳᕘọᢽЁՈᕅડɋᰏᴗₑؐˈ᳔ৢড়ᑊẝѯ᭄᥂ेৃᕫࠄ៤ᴀ᭄᥂▊DŽ෎Ѣ៤ᴀ᭄᥂▊ᩥਜ਼ᷙḐ᭄᥂Ё৘ऩܗࠄ⑤⚍Ո៤ᴀᲡࡿϢᮍ৥᭄᥂▊DŽ᳔ৢᠻᜐ᳔ڱᲳᕘߑ᭄ᦤপ᳔ՇᲳᕘDŽ6ˊ᪡԰ẋ࣏

1˅ẔᜐArcMapˈࡴṁSpatial Analyst῵ഫˈབᵰSpatial Analyst῵ഫ᳾࿁▔⌏ˈऩߏToolsአऩϟՈExtensionsˈọᢽSpatial AnalystˈऩߏCloseᣝ⍲DŽ

2˅ऩߏFileአऩϟՈOpenੑҸˈᠧᓔࡴṁ᭄᥂៪ഄ೒᭛ḷᇍ᪡Ḛˈọᢽroad.mxdDŽ3˅᪂าाⒸߚᵤɳ๗DŽऩߏSpatial Analyst῵ഫՈϟᢝੱ༈ˈᠧᓔOptionsᇍ᪡Ḛˈ᪂าּ݇খ᭄˖

AˊᠧᓔOptionsᇍ᪡ḚՈGeneralọ-वˈ᪂าڌᩨᎹ԰ᲳᕘDŽ

BˊᠧᓔOptionsᇍ᪡ḚЁՈExtentọ-वˈ೼Analyst ExtentϟᢝḚЁọᢽĀSame as Layer DemāDŽ

CˊᠧᓔOptionsᇍ᪡ḚЁՈCell Sizeọ-वˈ೼Analyst Cell SizeϟᢝḚЁọᢽĀSame as Layer DEMāDŽ

Dˊ߯ᓎ៤ᴀ᭄᥂▊

໇ᔕࠄቅഄവᑺǃ᰻ӣᑺᇍᓎ݀ᲳՈ៤ᴀᕅડ↨ṇ໻ˈ݊Ёˈᇸ݊ቅഄവᑺ᳈ᰃҎӀŊܜ݇⊼Ոᇍᬥˈ߭೼߯ᓎ៤ᴀ᭄᥂▊ᯊˈৃ໇ᔕߚ‑݊ᴗₑ↨Ў0.6˖0.4DŽԚᰃ೼᳝⌕ඳߚ

ᏗՈᚙމϟˈ⊇⌕ᇍ៤ᴀᕅડϡৃԢԄDŽ಴ℸˈ៤ᴀ᭄᥂▊Ўড়ᑊቅഄവᑺ੠᰻ӣᑺПৢՈ៤ᴀˈࡴϞ⊇⌕ᇍ៤ᴀПᕅડDŽ

Aˊവᑺ៤ᴀ᭄᥂▊DŽ

ọᢽDEM᭄᥂ሖˈऩߏSpatial Analystϟᢝ߫ᜬḚˈọᢽSurface Analysisᑊऩߏslopeˈϣ៤വᑺ᭄᥂▊ˈᩴЎSlopeDŽ

ọᢽSlope᭄᥂ሖˈऩߏSpatial Analystϟᢝੱ༈ˈọᢽReclassifyੑҸᅲᮑₑߚିDŽₑߚିՈ෎ᴀॳ߭ᰃ˖₋Ϭ਍ⒸᲡߚЎ10൫ˈവᑺ᳔ᇣϔ൫ᰏؐЎ1ˈ᳔໻ϔ൫ᰏؐЎ10ˈᕫࠄ೒4-1᠔߾വᑺ៤ᴀ᭄᥂˄reclass_slope˅DŽ

೒4-1 വᑺ៤ᴀ᭄᥂˄Reclass_slope˅

Bˊ᰻ӣᑺ៤ᴀ᭄᥂▊DŽ

ọᢽDEM᭄᥂ሖˈऩߏSpatial Analystϟᢝ߫ᜬḚˈọᢽNeighborhood Statisticsˈ᪂าབ೒4-2᠔߾খ᭄᪂าˈऩߏOKᣝ⍲ˈϣ៤᰻ӣᑺ᭄᥂ሖˈᩴЎQFDDŽ

೒4-2 ϣ៤᰻ӣᑺখ᭄᪂า

ọᢽQFD᭄᥂ሖˈऩߏSpatial Analystϟᢝੱ༈ˈọᢽReclassifyੑҸˈᣝ10൫਍Ⓒ

Სᅲᮑₑߚିˈഄᔶᱎ᰻ӣˈ൫᭄ᰏؐᱎʌˈ᳔ᇣϔ൫ᰏؐЎ1ˈ᳔໻ϔ൫ᰏؐЎ10ˈᕫࠄ೒4-3᠔߾ഄᔶ᰻ӣ៤ᴀ᭄᥂˄reclass_QFD˅DŽ

೒4-3 ᰻ӣᑺ៤ᴀ᭄᥂˄Reclass_QFD˅

Cˊ⊇⌕៤ᴀ᭄᥂▊

ọᢽRiver᭄᥂ሖˈऩߏSpatial Analystϟᢝੱ༈ˈọᢽReclassifyੑҸˈᣝ+⊇⌕਍൫བϟẟᜐߚି˖4൫Ў10˗བℸձ⃵Ў8ˈ5ˈ2ˈ1ˈϣ៤೒4-4᠔߾⊇⌕៤ᴀ˄reclass_river˅DŽ

೒4-4 ⊇⌕៤ᴀ᭄᥂

4˅ࡴᴗড়ᑊऩ಴௤៤ᴀ᭄᥂ˈϣ៤᳔ඌ៤ᴀ᭄᥂▊DŽ

ऩߏSpatial Analystϟᢝੱ༈ˈọᢽRaster CalculatorੑҸড়ᑊ᭄᥂▊ˈᩥਜ਼݀ᓣབϟ˖Cost=reclass_river˄ₑߚି⌕ඳ᭄᥂˅+˄reclass_slope˄ₑߚିവᑺ᭄᥂˅*0.6+reclass_rough˄ₑߚି᰻ӣᑺ᭄᥂˅*0.4˅

ᕫࠄ೒4-5᠔߾᳔ඌ៤ᴀ᭄᥂▊˄cost˅ˈ݊Ё⏅ᄶᜬ߾៤ᴀʌՈᾬߚDŽ

೒4-5 ᳔ඌ៤ᴀ᭄᥂

5˅ᩥਜ਼៤ᴀᴗₑᲡࡿߑ᭄DŽऩߏSpatial Analyst῵ഫϟᢝੱ༈ˈọᢽDistanceЁՈCost Weightedˈ᪂าখ᭄བ೒4-6ˈऩߏOKᣝ⍲DŽϣ៤೒4-7᠔߾៤ᴀᲡࡿ೒ˈ݊Ё⌙ᄶЎ⑤

⚍˗೒8.88᠔߾៤ᴀᮍ৥೒ˈᇪ⚍ԡ⑤༈DŽ

೒4-7 ៤ᴀᲡࡿ

೒4-8 ៤ᴀᮍ৥

6˅∖প᳔ڱᲳᕘDŽऩߏSpatial AnalystϟᢝḚˈọᢽDistanceЁՈShortest Pathˈ᪂าখ᭄བ೒4-9᠔߾ˈऩߏOKᣝ⍲ˈϣ៤᳔ඌՈ᳔ڱᲳᕘ೒˄೒4-10ˈ݊Ёڅᄶ୛ඃᾬߚЎ

ܲᅮՈᲳᕘ˅DŽ