快板环境变量设置分析解析

ALLEGROENVIRONMENTVARIABLES快板环境变量设置_________________________________________________________________________________类型:显示/光标全屏光标停滞处理:全屏光标可能在三维显卡加速处理器上会有停滞问题.设置解决全屏光标停滞问题pcb_cursor:设置快板显示的光标类型(默认为十字光标).全屏光标角度设置:仅适用于全屏的光标（见pcb_cursor变量）。默认情况下，显示的是无限的十字正交。这个变量是指定全屏光标的角度(0~90)。__________________________________________________________________________________类型:显示/提示快板预选和应用模式选择自定义数据提示延迟时间:默认情况下,数据提示定制消失250毫秒的光标离开之后的对象数据提示显示。这是所需的时间用户移动光标到要访问的数据提示先进的功能。这允许这种延迟是调整之间的0（即时数据提示消失）2000毫秒。数据提示延迟:默认情况下，数据提示出现如果光标停留在250毫秒的相同位置。这允许延迟要调整100和2000毫秒之间。数据提示显示位置:默认位置为下一个光标处.(如果设置了将会在工作面板的底部)禁用数据提示:禁用上下文敏感的数据提示，当鼠标悬停在快板的数据元素disable_hover_over:Disablesdynamichighlightinganddatatipsthatoccurwhenyouhoveroverelementsinthedisplay.Dynamichighlightinganddatatipswillstilloccurforapplicationmodecommandsbecausetheyareneededforpreselectionpreview.focus_followmouse:Controlsinteractionofwindowfocusandhover-overhighlightinganddatatips.Ifnotset,highlighting/datatipsareenabledonlywhentheAllegrocanvasisinfocus.Ifsettoallegro_derived,theyarealsoenabledwhenAllegrosub-windowssuchasshowelementareinfocus.Whensettoanywhere,theyareenabledregardlessoffocus.__________________________________________________________________________________类型:display/elementShowElementPreferenceSettingsetchlen_ignore_pinvia:Bydefault,theetchlengththatiscomputedforshowelementandothercommandswillincludeviatoviaoffsetdistanceswhenaviaorpinaredirectconnected.Thismakesthiscalculationagreewithourdelaycalculations.Settingthisvariablewillrestoretheolderversionofthecalculationthatexcludestheseoffsets.noshow_current_selections:Bydefault,ifaninteractivecommandisrunning,andtherearesomeelementsthatcurrentlyareselectedorhighlighted(withtemphighlight),runningshowelementwillresultinawindowdisplayinginformationforthoseelements.Theothercommandwillremainactive.Settingthisvariabledisablesthatfeature.Theothercommandwillterminateandaninteractiveshowelementcommandwillstart.show_max_manhattan_pins:Showelementdoesnotdisplayinformationwhennetscontainmorethan50pinsforperformancereasons.Valuecanbeanynumbergreaterthan0.NotapplicablefornetswithNO_RATproperty.showelement_autoavoid:Ifset,theshowelementwindowisautomaticallypositionedtoavoidthemainwindow.Whenunset(default)thepreviouslocationofthewindowisusedonnextopen.showelement_basearea:Forshowelement,default(ortraditional)reportsshapeareainSqIn.ifdesignunitsisEnglishorSqCent.ifdesignisMetric.TheartworkoptionmatchesfilmareaoutputwhichreportsMicronsinSqMillim.andeverythingelsethesameastraditional.Finally,thedesignoptionreportsunitsthesameascurrentdesignunits.showelement_brief:Ifset,certainshowelementdetailisfiltered.Currentlyforshapesitfiltersboundaryandvoidsegments.showelement_highspeed:IfsetandproductisAllegroorAPD,showelementfornetswilldisplayinPCBSIformat.showelement_xhatcharea:Ifset,reportsthatactualareaofcross-hatchedshapes.Bydefault,thecrosshatchlinesarenotconsideredwhencalculatingthearea.Thiscalculationistimeconsumingwhichiswhyitisnotthedefault.showmeasure_altunits:Ifset,theshowmeasurecommandwillalsodisplaymeasurementsinthespecifiedunits.__________________________________________________________________________________类型:display/generalDisplaySettingsdisplay_backingstore:Ifsetstoresacopyofthescreeninmemorytosaverepaintingwhenaformisclosedorawindowmoved.SupportedonlywithX-windows(UNIX)andappliestodrawingdata,notforms.Canbesetonthecommandlinebytypingbackingstore.display_no_auto_hide_boundary:Bydefault,turningthevisibilityofanetchlayeroffthroughtheoptionspanelwillautomaticallyturnoffthecorrespondingdynamicshapeboundarylayer.TurnonthisvariabletodisablethisfeatureandhavetheboundarylayerremainvisibleunlessmanuallytoggledthroughtheDisplay-Color/Visibilityform.display_norepair:Ifset,displayrepairisdisabledforthedescribedelements.Optionsareratsorall.Ifnotset,displayrepairmodeisenabledforallelements.Forslowersystems,settingthistoallprovidesbetterperformancebutresultsinsomegraphicsqlitches.Leavingthevariableunsetresultsinthebestdisplay.display_noskeletal_draw:Ifset,skeletaldrawmodeisdisabled.Skeletaldrawisusedwhenveryfastrefreshofgraphicsisrequiredsuchasdynamiczoomoutmode.display_raster_ops:Controlstheuseofrasteroperationstoimproveappearanceofdisplayfeatures.Thetradeoffistheuseofadditionalsystemmemory.Dependingonyourgraphicshardwareperformancemaybeslow.Forexample,itgreatlyimprovesthelookofthedynamicgraphics.Ifsettoslow,featuresthatrequirefrequentuseofthecapabilityarenotallowedtouseit.Thedefaultison.InOpenGLthisoptionmaygetturnedoffautomaticallyifallegrodisplayareaisbiggerthanhardwaresupportedstoragemechanism.MakingAllegrosmallershouldfixit.__________________________________________________________________________________类型:display/highlightdisplay_nohilitefont:Ifset,displaysallhighlightedelementswithasolidhighlightcolor.Thedefaultistodisplayhighlightedelementswithacombinationofthehighlightcolorandtheelement'soriginalcolor(striped).OpenGLmaynotsupportstripedhighlightingatallzoomlevels.highlight_shape_net:Highlightthenetassociatedwithashapewhenshapeisselecte