绘图工具

In the CAD system for progressive dies, the method is introduced to automatically generate geometric models of stampings through inputting the product drawings by AutoCAD and picking-up the entity information from DXF files and programming with ObjectARX and C＋＋ language, at the same time, generating algorithm of close contour lines and unidirectional chain-table structure are used to express the models of stampings, the class and direct judgment of contour lines are realized and the entity existing side is judged by analytical geometry, which efficiently solves the problem of automatic input of drawings of stamping and providing information of process planning and mold design.

在级进模CAD系统中，将产品的图形信息以AutoCAD直接绘图形式输入到计算机中，从AutoCAD的图形交换文件中提取信息，采用面向对象的二次开发工具ObjectARX和C＋＋语言编写接口程序，并通过封闭轮廓的生成算法自动生成冲裁零件的几何模型，且用单向链表的形式加以表达，同时对冲裁零件图形的轮廓进行分类与走向判定，采用简单的解析几何方法对实体存在侧进行判定，有效地实现了零件图形的自动输入，为级进模CAD系统的工艺计算和模具工作部分的设计等提供了必要的信息。

From the point on coefficient matrix of the sets of projection equations and in a broad sense axonometric projection ,the research and summarization of the development of projection theory this two centuries has been done.

从投影方程组系数矩阵及广义轴测投影分析入手，对两个多世纪以来的投影理论发展总结评述；通过数学分析，得出计算机绘图优于手工绘制轴测图的理论依据，证明计算机绘图不仅工具方便，且理论上更具有先进性

Seven types of dimetric drawing and three types of trimetric drawing are introducedby the author with an aim to help hasten the shift of the principles derived from varioustypes of dimetric and trimetric projections from the theoretical approach to the field ofpractical use,and to alleviate the embarrassing situation that only the simple methodscan be resorted to in drawing the pictorial projections by isometric drawing and cabinetdrawing.

为了使各种形式的正二测和正三测从理论研究转向实际应用，克服长期来人们在绘制轴测图时，多数只能采用正等测和斜二测等单调情况，以及提高绘图速度，本文推荐采用七种正二测和三种正三测，并设计一套绘制这十种正轴测的专用工具--轴测多角比例尺。本文提出一套近似作这十种正轴测坐标面上椭圆的方法和数据，使其既简便又准确。

For example, choosing different tools in a graphics application resembles the real-life choice of physical drawing tools.

例如， 在绘图程序中选择不同的工具模拟了现实中不同绘画工具的选择。

This is a pencil drawing process, there are 21 kinds of tools in the main toolbar, you can choose.

这是一个画笔的绘图程序，有21种工具在主工具栏，你可以选择。

This is a brush mapping procedures, 21 of the main tools toolbar, you can choose.

这是一个画笔的绘图程序，有21中工具在主工具栏，你可以选择。

The CAD modules for sand casting mold on shrinkage allowance and pattern draft have been developed and can be run in a 3D environment. It uses the programming tool of Visual C++ and the secondary development tool ObjectARX.

开发出了可以运行于AutoCAD三维绘图环境下的砂型铸造模具CAD系统的收缩量和拔模斜度模块，开发工具为Visual C++。net 2002的编程工具和AutoCAD的二次开发工具ObjectARX。

The CAD modules for sand casting mold on shrinkage allowance and pattern draft have been developed and can be nm in a 3D environment. It uses the programming tool of Visual C++ and the secondary development tool ObjectARX.

开发出了可以运行于AutoCAD三维绘图环境下的砂型铸造模具CAD系统的收缩量和拔模斜度模块，开发工具为Visual C++。net2002的编程工具和AutoCAD的二次开发工具ObjectuARX。

This is a pencil drawing process, there are 21 kinds of tools in the main toolbar, you can choose.

详细说明：这是一个画笔的绘图程序，有21种工具在主工具栏，你可以选择。

And fluency of using it. Their good adaptation to C.G. software has been reflected from the usage of brush, selection, view, layers, copy and selection of colors, and the styles of paintings.

在学生适应绘图软体情况良好方面，可以反映在笔刷工具的应用、圈选工具的应用、缩放检视工具的应用、色彩的复制、色彩的挑选、著色方式与图层的应用上。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了