【正文】 這就需要我們深入掌握計算機(jī)繪圖理論，并能熟練地掌握一些常用的系統(tǒng)變量的使用方法和設(shè)置技巧，才能使我們的繪圖工作更為便利、順暢，大大地提高繪圖水平和繪圖效率。 攀枝花學(xué)院本科畢業(yè)設(shè)計（論文） 外語文翻譯 8 圖形輸出比例的設(shè)置 當(dāng)我們繪制圖形的比例與我們輸出圖形時使用的比例不同時，就會使原來繪制的圖形中的文字標(biāo)注等在輸出的圖形中發(fā)生變化，因此在繪制圖形之前還須確定圖形的輸出比例。而在AutoCAD2021 中，新增了 ”Lweight” （線型寬度設(shè)置）命令，為用戶提供了新的功能，即利用實體特性進(jìn)行控制，為圖形的實體設(shè)置線寬，利用它可以在屏幕上顯示和打印輸出時，控制實體的線寬。 線寬參數(shù)的設(shè)置 過去手工繪圖，其繪圖和出圖是同步進(jìn)行的，如今計算機(jī)繪圖，其繪圖和出圖是分步進(jìn)行的。當(dāng)顯示或打印時，用戶設(shè)置的繪圖界限與缺省的繪圖界限差別較大時，在屏幕上顯示或繪圖儀輸出的線型會不符合工程制圖的要求，這時就要通過改變線型比 例系統(tǒng)變量的方法，來放大或縮小所有線型的每一小段的長度，使所作圖形符合要求。通常繪圖或出圖無需對 AutoCAD 系統(tǒng)變量值作修改和設(shè)置，取其缺省值就能正常工作，但有特殊要求時，就必須修改相關(guān)的系統(tǒng)變量；也有的時候圖紙的要求與作圖的直觀做法相矛盾，當(dāng)采取直觀作圖法無法達(dá)到圖紙的要求時，就要采用一些技巧來修改相關(guān)的系統(tǒng)變量，才能使計算機(jī)繪出和輸出的圖形達(dá)到圖紙的要求。顏色的閃耀大小和數(shù)字愈比較很棒 , 構(gòu)成緩沖是需要的也愈較多。 也有一個視為記憶儲存圖像的緩沖。 計算機(jī)不直接的依賴監(jiān)視器。通常，閃光是 4點（ 16位色）， 8點（ 256位色）， 16點（數(shù)千位色），和 24點（數(shù)百萬色）。監(jiān)視器的分辨率被熒屏上炫耀像素的數(shù)量所決定。 現(xiàn)在， 平板是在鍵盤之外的 CAD 系統(tǒng)中流行的輸入裝置 標(biāo)準(zhǔn)的輸出裝置對 CAD監(jiān)視器顯示。 一個圖形平板是一個使用者用鐵筆拉出的特別的平面。一個數(shù)字化是進(jìn)入數(shù)傳信號之內(nèi)在一幅圖畫上翻譯 X Y 軸位置的裝置和對一部計算機(jī)的追蹤信號。然而 , 使用一只鼠標(biāo)跟蹤曲線不是一件容易的工作。 他們能用來放置一個監(jiān)視器上的繪畫似的光標(biāo) ( 舉例來說十字架頭發(fā) ) ，而且回饋對計算機(jī)在監(jiān)視器上的目標(biāo)位置。 輸入裝置通常用來轉(zhuǎn)移來自人或儲藏媒體的數(shù)據(jù)到一部計算機(jī) CAD 功能 在哪里實行。主機(jī)作為大的數(shù)字 CAD系統(tǒng)是支援仿真模擬和分析。有一卷音帶后緩子系統(tǒng)對 CAD系統(tǒng)是必需的。對只有一些圖畫的儲藏小磁盤片能力極限系統(tǒng)， CAD是以圖形為基礎(chǔ)的并且需要巨大的數(shù)據(jù)處理，一個圖形加速器能大幅增加系統(tǒng)的表現(xiàn)。 幾個其他的參數(shù)和關(guān)于計算機(jī)的成分，也不得不被考慮。 根據(jù) CAD 命令的復(fù)雜性，它可能需要一臺大型計算機(jī)，一臺迷你型計算機(jī)，或僅一臺微型計算機(jī) ，大體上， CAD系統(tǒng)提供更好的功能性，需要更有強(qiáng)的計算機(jī)。 The sketch outputs the parison= output the diagram the length for of length( width)/ diagram.( width) draw the width of the diagram line to also should consider this point, its to settle the width same as output the width to multiply by with its parison worth. From above practice with analyze to can see out, calculator painting and inpletelyresemble handicraft painting so synchronously paint with out diagram, therefore sometimes make with the diagram method can39。t also display the line type the width39。s sketch. AutoCAD line type establishing of parison At teaching of process inside would usually run into what this kind of circumstance, while establishing diagram layer, clearly established the point lin eationed, and consequently output to however investigate its reason for the solid lined, and is usually because of the line typed the establishing of parison is not appropriate and cau sable. Should you so establish the parison of what kind of line type? How to use the line type the parison in the painting? Usage AutoCAD painting, besides continuous line type( Continuous), the other line type is all from the solid line segment, blank segment, point series for or text this constituting. Online type definition document the inside have already defined these line types the segment39。(1)model the object on a drawing,(2)digitize the drawing, or (3)scan the object. Digitizing is usually much easier than modeling. A digitizer is a device that translates the XY locations on a drawing than modeling. A digitizer is a device that translates the XY locations on a drawing into a digital and feeds that signal to a puter. Graphics scanners scan a drawing and convert it to a CADsystemreadable format. Some scanners have builtin characterrecognition software that can convert characters on paper into ASCII codes. Another input device is a sketch pad called a graphics tablet. A graphics tablet is a special flat surface on which a user draws with a stylus. The location of the stylus is sent to the puter. The tablet is an absolute coordinate device. It is easy to implement overlay menus on the tablet and pull down menus on the screen to improve the operation. Currently. the tablet is the most popular input device used in CAD other than the keyboard. The standard output device for CAD is a monitor display. Modern monitor displays are rasterscan display monitors. Similar to a TV monitor, an electron gun(Sony Trinitron uses three guns for three basic colors)sends an electronic beam to the front of the monitor. Easy display dot is called a pixel(picture element).For color di