Let Your Drawing Respond Faster in ZWCAD
Let Your Drawing Respond Faster in ZWCAD
Processing speed of CAD software is one of the most concerned issues of every user. Fast speed can be achieved directly by either software or hardware upgrade. In case of ordinary PC configuration, how can we further raise the speed even without software update? Here are some tips: 1. If you frequently specify the color or linetype for certain entities instead of using Bylayer or Byblock features, data will increase dramatically in the drawing, and it will take more time to process these data. It is suggested to create adequate and appropriate layers to which entities of different meanings or properties can be assigned respectively, so that the option of Bylayer and Byblock can help to reduce the amount of data stored. 2. If there are lots of layers in a drawing, some of which contain complicated entities seldom used, then you can freeze these layers, so that they would not regenerate with other layers, and result in processing time saving. 3. Hatch (Fill) is a kind of entity occupying much RAM. Too much hatches would significantly drag down the processing speed. To maintain high speed: (1) Do the hatching at the last step, so that there are no hatches affecting the speed during previous drafting steps. (2) Assign all hatches to a single or some specific layers and freeze some or all of them if possible. Then they will not regenerate with other entities. (3) In the Config dialogue box, select the Display tab and check the option Not display hatch while zooming. Entities such as Solid, Donut and Trace have another kind of fill. They can be displayed faster by setting OFF for FILLMODE. 4. Text also has influence on the speed of ZOOM, REDRAW and REGEN. Simplifying the display mode of text could help to increase the speed to a large extent. (1) Use a simple text font during the preliminary drafting work, and then replace this font with desired ones at the final stage when there are no more modifications to other graphic entities. (2) Use QTEXT to enable quick display of text. After the command is activated, boundary frames of text areas are displayed instead of text themselves. 5. In the case that we have to insert raster images: (1) Go to the Config dialogue box, select the Display tab and check the option Pan and zoom with raster & OLE, if it is not necessary to view raster images while doing PAN and ZOOM. (2) Use the command IMAGEQUALITY to choose a low quality display mode, when we don’t need to view images with high quality. 6. When REGENMODE is set as ON, ZWCAD will regenerate graphics automatically after executing some commands. Turning the mode off can help to save the time spent on automatic regeneration of graphics. 7. Entities often turn into dash line type for the purpose of highlighting when they are selected for modification. Sometimes such highlights take lots of time to display. So you can think of closing HIGHLIGHT if necessary. Not all methods might suit each specific case, but they do help if applied properly. When you get familiar with these features, drafting work could never be a difficulty in terms of speed, and you may find it easy and convenient to use ZWCAD in any situations. About ZWCAD As the flagship product of ZWCAD Software Co., Ltd., ZWCAD is a powerful CAD solution, which is highly compatible with DWG format. ZWCAD meets the needs of broad-based target groups of 2D/3D design industry, including architecture, engineering, construction, mechanics, manufacturing and electronics industries. So far, it has fast become the leading brand in China’s CAD industry and now competes successfully in over 65 countries, with 100,000 users throughout the world. (C) Copyright 2008 ZWCAD Software Co., Ltd. All rights reserved.Owen Zi is author of article written on ZWCAD. He is Director of Overseas Department of ZWSOFT. For more information, please visit: <a href="http://www.zwcad.org">www.zwcad.org</a> or contact ZWCAD team at sales@zwcad.com.
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How To Keep Your Computer From Spreading Viruses
There are some simple steps you must take to avoid becoming a victim of computer viruses and also stop from spreading viruses to others. Here are some things that you can and should do. Email Issues to watch Never open an E-mail with an attachment you were not expecting. The latest batch of virus programs are often spread by E-mail. Even if your anti-virus program does not warn you about the attached file and even if the eMail appears to come from someone you know, do not open it if you were not expecting it, and if you were expecting it, only open it AFTER scanning it with your up-to-date virus software. Scan ALL incoming email attachments (regardless of who sent it). Be sure to run each attachment you plan to open through the anti-virus check. Do this even if you recognize and trust the sender; malicious code, like Trojan horses, can slip into your system by appearing to be from a friendly source. Turn off the ‘automatic preview’ in your email program. Automatically previewing an email message has the exact same effect as opening and reading an email. My of the newest internet worms, trojans, and viruses simply need to have an email message read in order for them to be activated. Turning off the preview feature allows you to scan any email BEFORE you actually read it. Disk Issues to watch Don’t boot from a floppy disk. Floppies are one of the most common ways viruses are transmitted. If you are using a floppy while working on your computer, remove it when you shut the machine off or the computer will automatically try to boot from the floppy, perhaps launching any viruses on the disk. Web Based Issues Keep your web browser set to its highest security level. Its a pain to get the warning messages on every other web page you visit, but its the best way to protect yourself - especially if you use Microsoft Internet Explorer and Outlook. Don’t download programs from the Web. Unreliable sources such as Internet newsgroups or Web sites that you haven’t heard of may be willing providers of viruses for your computer. Avoid downloading files you can’t be sure are safe. This includes freeware, screensavers, games, and any other executable program - any files with an “.exe” or “.com” extension, such as “coolgame.exe.” Check to see if the site has anti-virus software running on their side. If you do have to download from the Internet, be sure to scan each program before running it. Save all downloads to one folder, then run virus checks on everything in the folder before using it. Regardless of where you download from, ALWAYS scan downloaded software. Routine Maintenance Make regular back ups of important data Make it a habit to back up all of your most important files at least once a month. Store the back up discs in a safe place. Clean any virus/worm/trojan off your computer (Details: http://www.antivirus-report.com/trojan-horse-removal.html ) Using your antivirus software, perform a full system scan of your PC, hopefully it will detect and remove the virus. If a virus was detected, restart your computer and run the full scan again. Sometime the virus will keep reappearing, due to the evolving nature of viruses. Symantec is particularly fast at providing removal tools should you ever get a virus or worm infesting your computer. What is a removal tool? Well simply put it is a simple software that will scan your computer for infections, and then remove them from your machine. You most often need this if your machine got infected BEFORE you installed antivirus software. Top Considerations for PC Protection And the final and most important two things to do to keep your computer clean and make sure it does not spread viruses to other computers… Install a Firewall If you use a broadband/high-speed method to access the internet, you need to get a firewall. A firewall is a program that defends your computer from hackers who attempt to gain direct access to your computer over the Internet. There is a very good firewall program called ZoneAlarm that will do the trick if you use Windows. Install and use a high-quality anti-virus program. This is the key to protecting your computer. Buy one of the major anti-virus programs - Norton Anti-Virus, PC-Cillin, or McAfee Anti-Virus. The primary benefit of the commercial packages is the frequency and ease of updating the virus definition files that these programs use to detect viruses. With new viruses popping up all the time, unless your protection software is kept updated, you start to become ever more vulnerable to infection. Get immediate protection. Configure your anti-virus software to launch automatically on start-up and run at all times. This will provide you back-up protection in case you forget to scan an attachment, or decide not to. And in case you forget to load up your anti-virus software, configuring it to start by itself will ensure you get immediate protection anyway. The top antivirus software programs all do this (but only if you have one installed on your computer). You do have current antivirus software installed right? If not, you can go to this page for more information on why you need antivirus software and how easy it is to use. <a href="http://www.antivirus-report.com/antivirus-software.html">Antivirus software</a> and general PC protection and maintenance are essential for safe and secure computing. Right now learn to easily block trojan horses, spyware, computer viruses, and other malicious software.
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