工業(yè)園1500數(shù)字地形圖測繪項目檢查報告

XXX工業(yè)園1:500數(shù)字地形圖測繪項目檢查報告產(chǎn)品名稱：1:500數(shù)字地形圖測繪成果生產(chǎn)單位：XXXXX2011年5月產(chǎn)品名稱XXXXX比例尺1:500生產(chǎn)單位XXXX報告編寫人：XXX201檢查部門結(jié)論：職務(wù)：簽章201技術(shù)負(fù)責(zé)人意見：職務(wù)：簽章公司領(lǐng)導(dǎo)意見：職務(wù)：簽章備注：XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX第22頁X目錄1任務(wù)概述 31.1測區(qū)范圍 31.2地理位置 31.3地形類別 31.4坐標(biāo)系統(tǒng)、成圖比例尺、基本等高距 31.5項目完成的主要工作 32檢查工作概況 42.1基本工作 42.2人員組成 42.3設(shè)備投入 43檢查工作技術(shù)依據(jù) 44檢查內(nèi)容及質(zhì)量問題處理情況 54.1已有資料的利用 54.1.1起算點 54.1.2參考用圖 54.2D級、E級GPS控制測量 54.2.1埋設(shè)點位 54.2.2GPS觀測及手簿記錄 64.2.3GPS點之記 64.2.4D、E級GPS測量數(shù)據(jù)處理 64.3四等水準(zhǔn)測量 74.3.1觀測及手簿記錄 74.3.2結(jié)點網(wǎng)平差 84.3.3成果質(zhì)量 84.4圖根控制測量 84.4.1測量方式 84.4.2成果質(zhì)量 94.5測區(qū)控制點成果表和控制點分布圖 94.6地形圖要素采集 94.6.1要素采集的方法 94.6.2要素采集的質(zhì)量 94.7地形圖編輯制作 94.7.1地形圖編輯制作方式 94.7.2地形圖編輯制作質(zhì)量 104.7.3特殊問題的處理 104.8地形圖成圖檢查 114.8.1地形圖內(nèi)業(yè)檢查 114.8.2地形圖外業(yè)回放檢查 114.8.3地形圖外業(yè)散點檢測 114.9儀器、設(shè)備的檢校 115對遺留問題的處理意見 126檢查統(tǒng)計和檢查結(jié)論 126.1檢查統(tǒng)計 126.2檢查結(jié)論 127附表、附圖 121任務(wù)概述1.1測區(qū)范圍XXXXXX縣境內(nèi)，規(guī)劃區(qū)總面積約150km2。本項目作業(yè)范圍位于規(guī)劃區(qū)西側(cè)，實際測圖面積32.01km2。1.2地理位置本項目作業(yè)范圍在東經(jīng)89°03′07″—89°09′45″，北緯44°43′22″—44°48′03″。1.3地形類別測區(qū)地形類別為平地和丘陵地（見“圖幅地形類別一覽表”）。測區(qū)野外作業(yè)最佳日期為4-11月。1.4坐標(biāo)系統(tǒng)、成圖比例尺、基本等高距平面坐標(biāo)系統(tǒng)采用經(jīng)過自治區(qū)測繪局審批的“XXXXX；高程系統(tǒng)采用1985國家高程基準(zhǔn)；成圖比例尺為1∶500；基本等高距為0.5m。1.5項目完成的主要工作編寫技術(shù)設(shè)計書，制定項目實施方案。D級GPS控制網(wǎng)觀測、計算17點，埋設(shè)普通基本標(biāo)石10點。E級GPS控制網(wǎng)觀測、計算83點，埋設(shè)普通標(biāo)石71點。四等水準(zhǔn)測量聯(lián)測D級GPS點9點、E級GPS點71點，觀測、平差計算四等水準(zhǔn)路線118.38km。圖根控制測量觀測、計算、埋石2074點。1∶500地形圖數(shù)據(jù)采集和地形圖編輯、制作32.01km2（標(biāo)準(zhǔn)分幅圖為570幅）。項目成果檢查，編寫檢查報告、技術(shù)總結(jié)。2檢查工作概況2.1基本工作對項目成果質(zhì)量和規(guī)范執(zhí)行情況進(jìn)行全面檢查，作為公司最終檢查工作，由公司質(zhì)檢部負(fù)責(zé)分兩個階段完成：2011年3月10日——3月20主要內(nèi)容為：內(nèi)業(yè)對GPS觀測手簿及平差計算資料、GPS點之記、水準(zhǔn)觀測手簿及平差計算資料、1∶500地形圖進(jìn)行100%檢查。外業(yè)對各級控制點埋設(shè)點位、1∶500地形圖進(jìn)行巡視檢查和全站儀設(shè)站檢查。對檢查過程中發(fā)現(xiàn)的問題作了記錄，并交作業(yè)人員修改。2.2人員組成項目檢查過程中，內(nèi)、外業(yè)共投入作業(yè)人員8名，由公司副總經(jīng)理XXXX領(lǐng)導(dǎo)，分內(nèi)、外業(yè)兩個質(zhì)檢組。（1）外業(yè)質(zhì)檢小組。成員：XXXXX。外業(yè)質(zhì)檢小組負(fù)責(zé)對控制測量成果進(jìn)行100%檢查，對地形圖成果進(jìn)行10%外業(yè)抽查。（2）內(nèi)業(yè)質(zhì)檢小組。成員：XXXXXX。內(nèi)業(yè)質(zhì)檢小組負(fù)責(zé)對地形圖成果進(jìn)行數(shù)據(jù)規(guī)范性、出圖標(biāo)準(zhǔn)性檢查，比例為100%。2.3設(shè)備投入本項目檢查工作投入車輛一臺，中海達(dá)V8GPS-RTK系統(tǒng)一套（一個基準(zhǔn)站，兩個流動站），索佳SET510全站儀一套及繪圖儀等其他必須設(shè)備。3檢查工作技術(shù)依據(jù)①GB/T18314-2001《全球定位系統(tǒng)(GPS)測量規(guī)范》。②GB/T12898-91《國家三、四等水準(zhǔn)測量規(guī)范》。③CJJ8-99《城市測量規(guī)范》；④GB/T20257.1-2007《1∶500、1∶1000、1∶2000地形圖圖式》。⑤GB/T14912-2005《1∶500、1∶1000、1∶2000外業(yè)數(shù)字測圖技術(shù)規(guī)程》。⑥CH/T2006-1999《水準(zhǔn)測量電子記錄規(guī)定》。⑦CH/T1004-2005《測繪技術(shù)設(shè)計規(guī)定》。⑧CH/T1001-2005《測繪技術(shù)總結(jié)編寫規(guī)定》。⑨GBT24356-2009《測繪成果質(zhì)量檢查與驗收》。⑩本項目技術(shù)設(shè)計書和批復(fù)意見。4檢查內(nèi)容及質(zhì)量問題處理情況4.1已有資料的利用4.1.1起算點利用基礎(chǔ)測繪新疆維吾爾自治區(qū)第一測繪院施測的C級GPS點ZC40、ZC41、ZC48、ZC50成果，標(biāo)石保存完好，作為本測區(qū)平面控制的起算點。利用國家等級水準(zhǔn)點保存完好，作為本測區(qū)高程控制的起算點。C級GPSXXX被破壞，本次作業(yè)利用原標(biāo)石進(jìn)行D級GPS觀測，并編號為“WD11”。測區(qū)內(nèi)原有四等三角點4100、4098，標(biāo)石保存完好，經(jīng)檢測其平面和高程與C級GPS點不兼容，本次作業(yè)利用原標(biāo)石進(jìn)行D級GPS觀測，并沿用原點號。4.1.2參考用圖XXXXXX局提供的電子版1∶25000“XXXX”，作為本項目踏勘、設(shè)計參考用圖。4.2D級、E級GPS控制測量4.2.1埋設(shè)點位本項目D、E級GPS控制網(wǎng)埋設(shè)點位分別為10點、71點，經(jīng)檢查點位分布均勻、位置合理，埋石規(guī)格及整飾標(biāo)準(zhǔn)、正規(guī)，符合GB/T18314-2001《全球定位系統(tǒng)(GPS)測量規(guī)范》關(guān)于GPS控制網(wǎng)布設(shè)、選點、埋石的有關(guān)要求。4.2.2本項目使用6臺中海達(dá)雙頻接收機和4臺中海達(dá)單頻接收機進(jìn)行靜態(tài)模式觀測。D、E級GPS控制網(wǎng)分別觀測17點、83點，分別填寫觀測手簿41頁、213頁，每頁對應(yīng)一個中海達(dá)ZHD格式數(shù)據(jù)文件。經(jīng)檢查手簿填寫正規(guī)、齊全，手簿記錄儀器斜高與觀測數(shù)據(jù)中儀器斜高一致，手簿記錄開、關(guān)機時間間隔與觀測數(shù)據(jù)中基線同步時段基本一致，時段長符合規(guī)范相應(yīng)等級要求。4.2.3GPS填寫D級GPS點點之記13頁，包含新埋設(shè)的10點和利用老點的3點。填寫E級GPS點之記71頁。經(jīng)檢查D級、E級GPS點之記填寫正規(guī)、齊全。4.2.4D、E級GPS(1)基線解算采用中海達(dá)隨機商用軟件HDS2003進(jìn)行數(shù)據(jù)處理，其觀測數(shù)據(jù)剔除率、各項解算設(shè)置均符合規(guī)范相應(yīng)等級要求。在軟件輸出的靜態(tài)基線報告中，同步環(huán)檢核時采用網(wǎng)中全部基線的平均長度計算σ。①基線相對誤差最大值重復(fù)基線：D級網(wǎng)中基線長度較差ds=+0.0037m，小于限差0.1164m。E級網(wǎng)中基線長度較差ds=+0.0040m，小于限差0.0579m。同步環(huán)：D級網(wǎng)中Wx=-0.0013、Wy=+0.0090、Wz=+0.0126，小于限差0.0150m。E級網(wǎng)中Wx=-0.0032、Wy=+0.0081、Wz=+0.0088，小于限差0.0090m。異步環(huán)：D級網(wǎng)中Wx=+0.0043、Wy=+0.0252、Wz=+0.0210，小于限差0.2063m，Ws=+0.0331，小于限差0.3573m。E級網(wǎng)中Wx=-0.0036、Wy=+0.0813、Wz=+0.0652，小于限差0.1858m。Ws=+0.1043，小于限差0.3217m②基線絕對誤差最大值重復(fù)基線：D級網(wǎng)中基線長度較差ds=0.0221m，小于限差0.1622m。E級網(wǎng)中基線長度較差ds=0.0118m，小于限差0.0740m。同步環(huán)：D級網(wǎng)中Wx=-0.0102、Wy=-0.0126、Wz=-0.0039，小于限差0.0174m。E級網(wǎng)中Wx=+0.0051、Wy=-0.0092、Wz=-0.0087，小于限差0.0090m。異步環(huán)：D級網(wǎng)中Wx=+0.0043、Wy=+0.0252、Wz=+0.0210，小于限差0.2063m，Ws=+0.0331，小于限差0.3573m。E級網(wǎng)中Wx=-0.0036、Wy=+0.0813、Wz=+0.0652，小于限差0.1858m。Ws=+0.1043，小于限差0.3217m(2)無約束平差采用中海達(dá)隨機商用軟件HDS2003，在WGS-84坐標(biāo)系統(tǒng)中進(jìn)行三維無約束平差，基線分量改正數(shù)相對誤差最大值分別為：D級網(wǎng)中V△x=-0.0008、V△y=+0.0049、V△z=+0.0018，小于限差0.0828m。E級網(wǎng)中V△x=+0.0023、V△y=-0.0006、V△z=-0.0019，小于限差0.0393m。(3)約束平差①D級網(wǎng)約束平差起始點為C級GPS點ZC40、ZC41、ZC48、ZC50，E級網(wǎng)約束平差起始點為C級GPS點ZC40、ZC50和D級GPS點WD01、WD02、WD03、WD04、WD05、WD06、WD07、WD08、WD11、4098，其中D級GPS點高程采用四等水準(zhǔn)成果。分別在1980西安坐標(biāo)系統(tǒng)中進(jìn)行二維約束平差，在1985國家高程基準(zhǔn)上進(jìn)行高程擬合。②D、E級GPS點高程采用四等水準(zhǔn)成果，擬合高程只作為計算參考。③控制網(wǎng)中平面距離中誤差、平面坐標(biāo)中誤差和擬合高程中誤差最大值分別為：D級網(wǎng)中平面距離中誤差最大值=0.0105m，平面坐標(biāo)中誤差最大值=0.0106m，高程中誤差最大值=0.0251m。E級網(wǎng)中平面距離中誤差最大值=0.0023，平面坐標(biāo)中誤差最大值=0.0041m，高程中誤差最大值=0.0075m。4.3四等水準(zhǔn)測量4.3.1觀測及手簿記錄(1)四等水準(zhǔn)觀測在國家等級水準(zhǔn)點Ⅱ杜奇35、Ⅱ杜奇36基礎(chǔ)上進(jìn)行四等水準(zhǔn)測量，采用DSZ2水準(zhǔn)儀以中絲讀數(shù)法進(jìn)行單程觀測，聯(lián)測D級和E級GPS點共80點，水準(zhǔn)路線118.38km。對于D、E級GPS控制網(wǎng)，除WD09、WD10、WD11、4100四點不在測圖范圍內(nèi)且距離測區(qū)較遠(yuǎn)未進(jìn)行四等水準(zhǔn)聯(lián)測之外，其余點位均進(jìn)行了四等水準(zhǔn)聯(lián)測。(2)記錄與輸出采用南方測繪軟件“控制精靈”記錄和觀測手簿、測段高差成果的輸出。4.3.2結(jié)點網(wǎng)平差(1)概略高程根據(jù)測段高差成果加入水準(zhǔn)標(biāo)尺長度誤差的改正和正常水準(zhǔn)面不平行的改正，編制高差和概略高程表。(2)結(jié)點網(wǎng)平差根據(jù)測段長度和改正后的測段高差，采用南方測繪軟件“平差易2005”進(jìn)行結(jié)點網(wǎng)平差，并輸出四等水準(zhǔn)測量平差報告4.3.3成果質(zhì)量經(jīng)檢查，本項目四等水準(zhǔn)測量各項檢查、檢驗資料齊全，水準(zhǔn)網(wǎng)各閉合環(huán)的閉合差及最后平差的精度指標(biāo)均符合GB/T12898-91《國家三、四等水準(zhǔn)測量規(guī)范》相應(yīng)等級要求。其中：12個水準(zhǔn)閉合環(huán)中高差閉合差最大值為49.90mm,小于限差±83.12mm。每公里高差中誤差=6.26mm。最大高程中誤差=10.20mm。4.4圖根控制測量4.4.1測量方式以GPS-RTK方式進(jìn)行測區(qū)內(nèi)圖根點測量。由于測區(qū)范圍相對較小，測區(qū)內(nèi)采用兩組轉(zhuǎn)換參數(shù)進(jìn)行參考點WGS-84坐標(biāo)與1980西安坐標(biāo)的轉(zhuǎn)換。4.4.2成果質(zhì)量WGS-84坐標(biāo)與1980西安坐標(biāo)的平面轉(zhuǎn)換殘差最大值0.0051m，高程轉(zhuǎn)換殘差最大值0.0037m。流動站觀測均采用三角架對中、整平，觀測歷元數(shù)均大于20個，符合設(shè)計書要求。測區(qū)內(nèi)圖根點密度符合GB/T14912-2005《1∶500、1∶1000、1∶2000外業(yè)數(shù)字測圖技術(shù)規(guī)程》1∶500比例尺測圖要求，且分布均勻，精度可靠。見附表一“圖根點檢測中誤差計算表”。4.5測區(qū)控制點成果表和控制點分布圖(1)根據(jù)GPS測量、四等水準(zhǔn)測量、圖根控制測量成果制作測區(qū)控制點成果表和控制點分布圖。(2)測區(qū)控制點成果表說明詳細(xì)，1980西安坐標(biāo)系成果與“五彩灣煤電煤化工工業(yè)園相對獨立平面坐標(biāo)系統(tǒng)”成果之間換算正確，成果表中點名、坐標(biāo)與控制點分布圖、1∶500比例尺地形圖中一致。4.6地形圖要素采集4.6.1要素采集的方法使用檢校合格的全站儀和配套設(shè)備,測站點全部選擇在埋石圖根點上，以埋石圖根點或E級GPS點標(biāo)定全站儀起始方向，然后按限定的距離進(jìn)行地形點和地物點采集，同時繪制實地現(xiàn)狀草圖并進(jìn)行屬性標(biāo)記。4.6.2要素采集的質(zhì)量各類建筑物、構(gòu)筑物及主要附屬設(shè)施無遺漏；線狀地物的采集選點密度適當(dāng)，曲線擬合準(zhǔn)確；地上管線的轉(zhuǎn)角點及支架線桿和附屬設(shè)施均進(jìn)行了實測；地貌主要以等高線表示，地形點采集密度和選點位置基本合理。通過正確的作業(yè)方法獲取的采集數(shù)據(jù)具有較高的理論精度，數(shù)據(jù)質(zhì)量主要取決于作業(yè)人員的技能和作業(yè)經(jīng)驗，在嚴(yán)密的質(zhì)量控制體系下，本項目要素采集成果符合GB/T14912-2005《1∶500、1∶1000、1∶2000外業(yè)數(shù)字測圖技術(shù)規(guī)程》的基本要求。4.7地形圖編輯制作4.7.1采用南方CASS7.0綜合成圖系統(tǒng)，根據(jù)外業(yè)采集數(shù)據(jù)和外業(yè)草圖進(jìn)行數(shù)據(jù)處理和地形圖編輯。確認(rèn)地物、地貌位置、屬性無誤后，進(jìn)行標(biāo)準(zhǔn)圖幅分幅，以圖號作為文件名，保存為DWG格式。4.7.2地形圖編輯制作地形圖編輯制作在外業(yè)采集數(shù)據(jù)和草圖的基礎(chǔ)上進(jìn)行，作業(yè)過程中編輯、檢查的細(xì)致程度直接影響地形圖編輯制作質(zhì)量。本項目地形圖數(shù)據(jù)中：各級控制點表示正確，各類地物間相互關(guān)系處理恰當(dāng)，地貌的表示能體現(xiàn)實地地形特征，高程注記點密度、位置合理，圖廓要素正確。最終地圖制圖數(shù)據(jù)無冗余，屬性完整、分層正確、分色合理，符合GB/T14912-2005《1∶500、1∶1000、1∶2000外業(yè)數(shù)字測圖技術(shù)規(guī)程》地形圖編輯制作要求。4.7.3（1）因基于CAD的CASS綜合成圖軟件中無GB/T20257.1-2007《1∶500、1∶1000、1∶2000地形圖圖式》給出的CMYK配色系統(tǒng)，本項目以下表的對應(yīng)關(guān)系進(jìn)行配色系統(tǒng)間的色值轉(zhuǎn)換，經(jīng)繪圖儀出圖檢查，色彩效果理想。CMYK顏色RGB顏色主要要素K1000,0,0控制點、獨立地物、境界（除另行給出顏色以外的）道路（除另行給出顏色以外的）人工坎、水系附屬設(shè)施C1000,174,239水系點線C10234,246,253水系面M40Y100K30185,124,15地貌線面、干河、干溝M80232,82,152省道C100Y1000,166,81專用道、植被M100Y100237,28,36國道M30Y100250,190,0縣鄉(xiāng)道M100236,0,140開發(fā)區(qū)、保稅區(qū)、自然、文化保護(hù)區(qū)界線（2）測區(qū)內(nèi)分布有許多地下管道在地面上的標(biāo)志樁，沿鐵路兩側(cè)分布有鐵路警示牌，根據(jù)其性質(zhì)和外形特點，圖式中無相應(yīng)適合的符號表示。本項目成圖成果添加兩個點狀地物符號，在CASS7.0符號庫中其名稱、代碼如下：代碼圖層塊參照名稱173311GXYZGC881地下管道標(biāo)志樁162510DLSSGC882鐵路警示牌4.8地形圖成圖檢查4.8.1地形圖內(nèi)業(yè)檢查在經(jīng)過最終檢查的地圖制圖數(shù)據(jù)基礎(chǔ)上進(jìn)行地形圖成圖輸出，內(nèi)業(yè)進(jìn)行圖面檢查。對個別存在如等高線示坡線方向標(biāo)錯、高程注記點選注不合理等問題的圖幅，核對、修改地圖制圖數(shù)據(jù)后重新輸出。4.8.2地形圖外業(yè)回放檢查地形圖成圖外業(yè)巡視檢查主要抽查了部分可精確定位的地物較多的圖幅，并進(jìn)行了全站儀設(shè)站檢查。測區(qū)內(nèi)重要地物無錯漏，對個別存在如亂掘地表示不合理、植被界線表示不準(zhǔn)確的圖幅，核對、修改地圖制圖數(shù)據(jù)后重新輸出。全站儀設(shè)站檢查結(jié)果見附表二“地物點間距檢測中誤差計算表”。4.8.3地形圖外業(yè)散點檢測因測區(qū)內(nèi)多數(shù)圖幅中可精確定位的地物實體較少，地形圖成圖檢查以等高線精度檢查為主，本項目對測區(qū)內(nèi)50幅地形圖進(jìn)行了全站儀設(shè)站檢查，每幅檢測30-40點，檢查圖幅數(shù)約占總圖幅數(shù)的10%。全站儀設(shè)站檢查結(jié)果見附表三“外業(yè)散點檢測誤差統(tǒng)計表”。4.9儀器、設(shè)備的檢校（1）儀器設(shè)備的自檢、自校：對作業(yè)過程中使用的GPS天線基座對中器進(jìn)行了檢查，所有基座對中器對中精度均符合GPS觀測要求；對作業(yè)過程中使用的水準(zhǔn)標(biāo)尺的自檢、自校項目齊全、方法正確、資料正規(guī)。（2）儀器設(shè)備的檢驗：本項目實施過程中使用的金屬線紋尺、水準(zhǔn)儀、全站儀、GPS接收機均具有測繪儀器檢驗部門出具的檢驗證書，除3臺由中海達(dá)儀器公司提供的備用GPS接收機外，所有儀器的使用均在檢驗有效期之內(nèi)。（3）由中海達(dá)儀器公司提供的備用機（編號0921549、0921244、0921436）校準(zhǔn)日期為2010年12月10日，D、E級GPS控制網(wǎng)中使用了其12月10日前的觀測數(shù)據(jù)。對12月10日前、后所觀測的數(shù)據(jù)進(jìn)行解算過程檢查，其基線精度情況前、后無明顯差異。5對遺留問題的處理意見測區(qū)內(nèi)個別圖根點埋設(shè)在冬季凍結(jié)的地表上，部分圖幅內(nèi)凍結(jié)的沙泥地消融后形成的積水圖上用水域符號表示。檢查時發(fā)現(xiàn)T0724、T0766、T1629、T1587四點位于水域內(nèi)，成圖中仍保留圖根點符號和注記。圖式中圖廓整飾樣式中左上角、右下角有圖名圖號注記，測區(qū)內(nèi)所有分幅圖均不做標(biāo)注。本次檢查工作中發(fā)現(xiàn)的其他問題，如GPS觀測手簿中部分缺少測站略圖、水準(zhǔn)測段高差計算取位不一致、地形數(shù)據(jù)采集時個別鏡站點位取舍不合理、地形圖編輯時個別圖幅內(nèi)符號不統(tǒng)一、個別圖幅發(fā)現(xiàn)高曲矛盾，以上問題及時交作業(yè)組處理，經(jīng)最終檢查、復(fù)核后，本項目成果無重要遺留問題。6檢查統(tǒng)計和檢查結(jié)論6.1檢查統(tǒng)計本項目對控制測量成果和地形圖成圖成果的內(nèi)業(yè)檢查填寫了“過程檢查登記表”，由各工序作業(yè)組進(jìn)行核對、修改。對地形圖成圖成果的外業(yè)全站儀設(shè)站檢查結(jié)果進(jìn)行了統(tǒng)計，并填寫了“圖根點檢測中誤差計算表”、“地物點間距檢測中誤差計算表”、“外業(yè)散點檢測誤差統(tǒng)計表”。6.2檢查結(jié)論(1)經(jīng)檢查本項目作業(yè)方法規(guī)范、過程控制嚴(yán)密、軟硬件配置合理，各項文本資料、圖件資料、檢查檢驗資料齊全。(2)本測區(qū)GPS控制測量、四等水準(zhǔn)測量、圖根控制測量成果各項精度指標(biāo)無超限現(xiàn)象，各項資料完整，符合相關(guān)規(guī)范和設(shè)計書要求。(3)本測區(qū)成圖成果地物、地貌要素取舍合理，各類符號運用適當(dāng)，標(biāo)準(zhǔn)分幅圖框整飾符合圖式要求，圖面清晰美觀；圖根點、地物點間距、等高線檢查統(tǒng)計精度優(yōu)于設(shè)計書精度要求。7附表、附圖附表一圖根點檢測中誤差計算表點號原坐標(biāo)（m）檢測坐標(biāo)（m）較差（m）XYHX′Y′H′△S△HT00074962685.939431300.674544.5414962685.919431300.688544.5200.0240.021T00084962686.012431436.704545.4114962686.035431436.680545.380.0330.031T00154962558.294431328.358542.5184962558.301431328.340542.5300.019-0.012T00194962562.323431810.692531.4004962562.300431810.712531.38500.0300.015T00394962329.145431175.730540.4024962329.115431175.715540.4220.034-0.020T00444962311.978431810.170530.3224962312.00431810.160530.3020.0240.020T00494962312.007432436.207537.1214962312.015432436.223537.1000.0180.021T00574962187.737431310.247527.7344962187.755431310.265527.7100.0250.024T00734962065.475430933.864526.5284962065.455430933.886526.5390.030-0.011T00794962057.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